Study finds memory decline surge in young people
180 points
13 hours ago
| 23 comments
| onepercentrule.substack.com
| HN
Study: https://www.neurology.org/doi/10.1212/WNL.0000000000214226
lrvick
5 hours ago
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Since giving up my cell phone entirely over 5 years ago, my productivity, memory, and overall happiness are at the highest levels they have ever been, in my late 30s. I no longer apologize to anyone for this lifestyle choice anymore since the benefits are something everyone deserves, but almost all opt out of today for made up reasons.

I take photos with a pocket mirrorless, and take notes with a notebook. I tell time with a self winding mechanical watch. I pay for things at stores with cash instead of tap to pay. Like a cave man, I know.

I am reachable by internet when I am at my desk, and by landline when I am at home. In an actual emergency dial 911, not me. Otherwise it can probably wait until I am at my desktop or a laptop.

I was already sold on raising kids without smartphones on intuition and lived experience, but study after study point at us having access to all humans, all knowledge, and all entertainment at all times as leading to generally bad mental health and cognitive function outcomes. Our brains were simply not evolved for it.

Whenever I see parents scrolling, and handing a kid a phone as well to pacify them, I wish I could report them for child abuse. I feel like I am watching them be given whiskey or cigarettes, except it is socially acceptable and no one cares.

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kibwen
4 hours ago
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Last Monday in a fit of exasperation I turned my phone into airplane mode. And that's where I left it, for an entire week. I swear this was the most productive week of work I've ever had in my professional career. It's astonishing. On the weekend I wanted to call my mom and yet I dreaded taking it off airplane mode. I'm going to try doing this for the foreseeable future.
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lrvick
3 hours ago
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You can do wifi calling in airplane mode. Left ours in this mode by default for months at first and then realized we could just cancel the cell phone plan entirely to save money. Wifi is everywhere when you need it.
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hexbin010
1 hour ago
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Curious, did you have all notifications turned off prior to that? ie was it that you responded to notifications?
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rpdillon
3 hours ago
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> Whenever I see parents scrolling, and handing a kid a phone as well to pacify them, I wish I could report them for child abuse.

Consider that you might not have everything figured out for everyone. I'm glad you found something that works, but the will to impose your way on others isn't benevolent.

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lrvick
3 hours ago
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Many parents used to drink while pregnant and put whiskey in the baby bottle to make kid shut up. We should make decisions based on research, not by emulating other badly informed parents, even if they are the majority.
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rpdillon
3 hours ago
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The study does not point to a cause. The comment I'm responding to is drawing conclusions based on a sensationalist blog post and then wishing they could report other parents for abuse. I think the study is well done, but we can't scientifically draw the conclusions from it that the author (and folks in this thread) are drawing.
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lrvick
12 minutes ago
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This is just one study, that echos dozens and dozens of other studies all pointing at the same things: being reachable and able to reach everything and everyone everywhere all at once is making us all sadder and less productive, and kids are getting the worst of it having been handed this tech from their parents shortly after birth.
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hexbin010
1 hour ago
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"It takes a village to raise a child"

Oh my god that's so true!

<village opens its mouth>

Actually, screw the village

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31337Logic
2 hours ago
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Your reply was next to meaningless as it doesn't offer anything above a "well, that's just how YOU feel about it!".

Yes, that's true. That /is/ how the OP feels about it. But at least they were able to articulate their point and get a message across, along with an implied (albeit weak) "call to action", not meant to be taken literally. Although I'm sure, if polled, the majority of folks in this thread would agree with the OP sentiment. I know I do.

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dpark
2 hours ago
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“I wish I could have CPS take away their children and put them in foster homes” is a pretty messed up thought to have in response to seeing a kid looking at a phone. It seems pretty reasonable to call that out.

> Your reply was next to meaningless

We’re on a discussion forum. “Here’s how I feel about what said” is basically the point.

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rpdillon
50 minutes ago
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The purpose of my comment was to point out that just because you've found a solution that works for you does not mean it is generalizable and should be turned into a rule for the entire population.
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lrvick
40 minutes ago
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To be clear on my views.

1. I am entirely convinced minors should not have smartphones and every study supports this being a net negative.

2. I feel most adults are better off without them too, but it is an adult choice. For most I suggest deleting a frequently used app ever month until you stop seeing benefits.

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rpdillon
33 minutes ago
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The study we're discussing drew no such conclusion. There's a very disturbing pattern of studies coming out and being summarized by people with an agenda that choose to draw conclusions that are not supported by the study they're discussing. This is definitely true of social media studies, and I suspect it's true of mobile phone studies as well, although maybe you can provide a couple that you think are airtight and I can take a look.
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lrvick
43 seconds ago
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ALL studies I have seen seem to support the idea that constant connectivity leads to worse mental health outcomes on average.

To get to specific proof though, clinically in the way we could with other addictions like smoking, we would need to look at how individual applications that allow us to outsource various cognitive functions specifically impact our brains.

GPS is a well studied example. Humans that rely on GPS instead of their own brains end up with provably weaker hippocampus.

https://newatlas.com/gps-spatial-direction-ucl/48529/

It is not hard to form a hypothesis from this how letting targeted content algorithms decide what you see instead of making decisions on your own could weaken the portions of your brain that make decisions in a similar way, and all studies we have seen so far seem to support this hypothesis.

I would of course like to see more brain scan research but when all data points to the negative on something only available to humans very recently, and your own lived experience of forgoing that something has had major benefits for your personally, it becomes easy to be a strong advocate for people trying out a reduction of that something.

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crims0n
4 hours ago
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I love the sentiment, but some of us need to be reachable for work. I wonder if PagerDuty could be rigged up to work with actual pagers?
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cenamus
3 hours ago
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Android profiles with just the the pager stuff installed/enabled would probably work?

And a long/annoying password for the "main" profile, with banking and all the other stuff maybe

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conception
4 hours ago
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Pagers take SMS. The problem is finding modern pager service.
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hellcow
3 hours ago
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PagerDuty can send you an SMS or call you, so wouldn't that work with a dumb-phone?
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VladVladikoff
5 hours ago
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This is inspiring. I definitely need to look into getting a landline and reducing my cellphone dependence. We’ve been talking about it lately for our daughter to be able to talk to her friends outside of school. Recently another parent had suggested face time calls which we are strongly against (not so much against video calls but rather against child tablet usage).
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lrvick
4 hours ago
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I started by deleting an app a month until my phone was so boring I kept forgetting it at home, and ultimately abandoned it entirely.

It took a couple years to recalibrate my dopamine reward system gradually until I could enjoy just existing in my own thoughts and brain again while away from the internet, learn to navigate for myself, etc.

For "landlines" I just ported my families cell phone numbers (with their total consent and support) to a voip service, then got VOIP ATA boxes which allows plugging traditional landline phones, including an actual payphone for fun, via ethernet or wifi. Costs a couple dollars a month.

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31337Logic
2 hours ago
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Pro Tip: Other parents sometimes need to be told NO, especially when it comes to matters of tech. I believe their heart is in the right place but most of them don't know the first thing about the dangers of social media, gps tracking, cellphone addiction, frequent video calls, etc. If enough pressure is applied, then it will be the norm for your local community of kids to spend time in real life together vs. 100% online in a digital scaremongered world. Can there be a balance? Sure. But that balance usually comes only after saying NO to unnecessary tech. NO, kids in elementary school don't need a phone (they really don't). NO, we don't need to digitally track our child's movements down to the meter (we really don't).

But don't take my word for it. In 2025, we now havea sea of well documented research that proves the extremely high cost we all pay (as a society) for damaging our kids this way.

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dpark
2 hours ago
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> 100% online in a digital scaremongered world

The irony of posting scaremongering about video calls being dangerous on a digital forum while claiming to be offline to avoid scaremongering.

> If enough pressure is applied

You cannot force the rest if your community to align with your personal viewpoints. There is no amount of “pressure” that is going to bend society to your will.

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lrvick
38 minutes ago
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Smoking is dropping like a brick as a result of science, education, and social pressure. Just takes a while.
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dpark
35 seconds ago
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I was perhaps ambiguous. I am not saying societal change is not possible. I’m saying you, personally, will not change your local community as you imagine by simply telling other parents no.

Nowhere in your comment is there any indication you are running some sort of community initiative or anything else that might lead to actual change. Campaigning for a spot on the school board to advocate for banning cell phones in schools might be a useful strategy, for example. Telling parents who ask about FaceTime between friends that tablets are evil seems as effective as telling random smokers on the street that it’s going to kill them.

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apexalpha
4 hours ago
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So you not have extended family or friends in your daily social setting?

Like this sounds awesome but being offline for 23 hours in the day is unmanageable here, unless you live a very solitary life.

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testing22321
3 hours ago
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I also have no phone.

I have tons of friends and a very active social life - in person.

I bump into friends in town, at the ski hill, at the bar and grocery store.

I ask people for the time, directions and how their day is going. I’ll never have a phone.

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apexalpha
3 hours ago
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Okay but what if daycare needs you to pick up your kid?

People expect to be able to reach you…

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lrvick
32 minutes ago
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I am near a landline 90% of the time, and go to my desk to check emails and chats multiple times a day on weekends. It turns out you do not need to be reachable or online every second of every day to do virtually anything in the modern world including raising kids.
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SoftTalker
3 hours ago
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We managed these problems before everyone had a mobile phone.
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jodrellblank
3 hours ago
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"What if you get an infection?"

SoftTalker: "We managed healthcare before antibiotics, antiseptics, germ theory, sterilisation. Hah, gotcha."

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DangitBobby
2 hours ago
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That's why I make sure my kid is chained to my side 24/7, you never know what could happen. This contact-ability panic is fucking ridiculous.
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watwut
3 hours ago
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Back them, they did called you to work and it was customary to rely message by two other people. There is no such desk anymore and they dont want to be handling your life.

And if your kid needed to go home and sleep in bed, you had to take the day off instead of home office. There was price to that.

Oh, and back then school did not expected parents and kids to have phones, now it does. Information about schedule changes, homework, what needs to be paid and such is broadcasted with the assumption that everyone has a phone.

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testing22321
2 hours ago
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Email.

If it’s a real emergency Call 911. They’re better trained than me.

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PKop
3 hours ago
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Have your wife stay home with the kids, then you don't need daycare.
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tharne
3 hours ago
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I very rarely find myself being sincerely jealous of others, but man does your life sound amazing.
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testing22321
2 hours ago
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And to be honest, that reaction is part of the reason I keep doing it.

When people ask for my number and I say I don’t have a phone, 99% of all people say very passionately “omg, I wish I could get rid of this thing”. Most people don’t like their phone, which confirms my belief it won’t make my life better.

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blueflow
4 hours ago
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> Like this sounds awesome but being offline for 23 hours in the day is unmanageable here, unless you live a very solitary life

Except when you are offline together.

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apexalpha
3 hours ago
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Yes, but unfortunately my kids’ daycare, school, other parents, my job don’t want to.
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lrvick
3 hours ago
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If you wanted to be vegan as a personal choice and everyone in your life wanted you to eat meat anyway, who cares? No one gets to decide your lifestyle but you. Make them adapt.

You can get landlines (via a VOIP conversion box or otherwise), and beyond that what do you really need if you are honest?

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dpark
2 hours ago
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This is just circular arguing.

> it’s not manageable to be offline all the time here

> it is if you’re all offline together

> but everyone doesn’t want to be offline with me

> just be offline by yourself; what’s the big deal? <— you

The big deal is all the stuff called out above. My kids school, child care, my work, pizza delivery, everyone has built up infrastructure that assumes virtually always online.

If it works for you to just not be online anymore, cool. But it’s not trivial for many people to make this change.

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lrvick
27 minutes ago
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I have an active social life, spent years as a sysadmin, co-run two tech companies, have a family, all without a phone.

This is not some crazy sci-fi lifestyle experiment I am running for the first time. I just live mostly like all industrialized humans did before 2009.

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lrvick
36 minutes ago
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I live in silicon valley, have an active social life, travel frequently, have a family I spend time with every day, and am co-running two tech companies.

People did all of these things before smartphones and all those methods still work just fine today.

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31337Logic
3 hours ago
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It saddens me that this is a real thought of yours. You just need a bit of creativity and trust, my friend. Something it seems people are lacking these days... likely due to the very thing we are discussing now: smartphone addiction!

As has already been pointed out to you here before, these social moves you fear are awkward or impossible were EASILY handled by generations before you... and all without cellphones. Go figure.

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Gooblebrai
4 hours ago
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> I pay for things at stores with cash instead of tap to pay

Good luck living in London with cash. I guess a plastic credit cards is allowed

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hexbin010
1 hour ago
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What particular issues are you referring to?

You can top-up Oyster with cash at machines and counters. Oyster cards are better as they are ~500ms quicker when tapping !

Cash is still pretty viable in the UK. I can't think of a single place the past decade where they've not taken cash and I've been sad about it or massively inconvenienced - but then again I don't get out much ;)

If a restaurant thinks it can get away with just tiny text on a menu informing that it's cashless, you could give them a lesson in the law.

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jjgreen
57 minutes ago
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I live in London and always pay cash; there are a few places which are card-only, I don't shop there.
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rpdillon
3 hours ago
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The article is already fairly sensationalist in its conclusions and language, but avoiding tap-to-pay because you don't have a phone is a non-sequitur; debit and credit cards support tap to pay just fine. Similarly with folks saying they don't carry a phone so they ask others for the time. One option is to wear a watch.
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lrvick
3 hours ago
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When you use tap to pay, you are sending information about your purchases and location to dozens of ad tech companies, and are still participating in the very surveillance capitalism that makes everyone stupider for money.

I also pay with cash for privacy, and to use my privilege to constantly demand it as an option so the unbanked who cannot advocate for themselves can still participate in society.

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jodrellblank
3 hours ago
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> I also pay with cash for privacy

Somewhat privacy. When you take cash out of an ATM, surely the serial numbers will be recorded as being dispensed to you. And when the shop pays those notes into the bank, they will be connected to the shop's account. "lrvick took this note out November 4th on Main Street, Pretend Grocery Store on West Street paid it in on November 7th". Maybe the note will be given in change and pass through a few places, but over months and years, you and Pretend Groceries will be more and more strongly connected.

"Yesterday Dad went out to buy a hardcover novel. He said he wanted to read something long, rich and thought provoking for a change. He also said he was going to buy the book with cash, so nobody could trace the purchase to him and exploit his interests for commercial purposes" - Calvin and Hobbes, Watterson, December 1993.

https://featureassets.gocomics.com/assets/d0f4d450df96013172...

https://www.gocomics.com/calvinandhobbes/1993/12/07

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lrvick
22 minutes ago
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> Somewhat privacy. When you take cash out of an ATM, surely the serial numbers will be recorded as being dispensed to you.

For large bills that is true to some extent, but having worked closely with secret service in the past at multiple points, they have confirmed my suspicion that $20s and below are virtually impossible to track and they do not bother unless they are specifically giving you marked bills because you are already suspected of a crime.

Also avoiding tracking by a governments and tracking by surveillance capitalism are very different threat models.

Getting down to 0 tracking is of course impossible, but the less data we leak the less clear of a picture third parties get on how to predict and manipulate our behavior. Why help them?

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tharne
3 hours ago
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> I also pay with cash for privacy, and to use my privilege to constantly demand it as an option so the unbanked who cannot advocate for themselves can still participate in society.

Good for you! I so wish more people would think and act this way. Most people don't realize that in a world without cash, government and large businesses can shutdown your entire with the push of a button without any sort of due process.

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rpdillon
3 hours ago
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Absolutely agree. It just has nothing to do with self-reported memory and cognitive decline, which is the subject of the article.
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lrvick
16 minutes ago
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I think it is totally related. The more information you give surveillance capitalists about what you buy at the drug store, or liqueur store, or movie theater, when you leave home, etc. the more power you give them to manipulate you and keep you addicted to their platforms.

As a former professional magician with a background in studying mentalism, I can assure you ALL of us can be manipulated and distracted by entities that have enough seemingly small and insignificant bits of information about our daily routines in their widely sold and cross-indexed databases.

The less data you give these entities, the more boring targeted content and ads become, and the more attention you will have left for things that matter.

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lrvick
3 hours ago
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I use cash all the time all over the world. I do sometimes have to walk out of a restaurant that refuses cash to find one that accepts it, but that sort of thing is memorable and often changes behavior in those businesses. Companies hate losing customers for easily fixable things like that.
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autoexec
10 hours ago
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> Those 4.5 million survey responses were gathered over a decade

I'd feel more confident about the results of this research if it didn't entirely depend on self-reported data from a survey. At least in this case it was a phone survey and not just an internet questionnaire posted to social media sites. I'd put more faith in a much smaller sample of young people being professionally evaluated for memory problems.

The survey asks the question: "Because of a physical, mental, or emotional condition, do you have serious difficulty concentrating, remembering, or making decisions?"

It doesn't ask what physical/mental/emotional condition they have, or even if they were diagnosed with it by a professional (although it does at one point ask if a doctor has told them they have a depressive disorder).

Some years the survey included optional questions (which people may or may not have been asked) that asked if they were taking medicine or receiving treatment from a doctor or other health professional for any type of mental health condition or emotional problem, but again, didn't ask what that condition was.

If you told me that there has been a surge in young people over the last ~10 years who self-identify as having a mental or emotional problem that they themselves suspect has caused difficulty concentrating, remembering, or making decisions I wouldn't be at all surprised.

I'd be more curious to know if there were a surging number of young people who were being diagnosed and treated for serious memory disorders recently.

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doubled112
4 hours ago
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> diagnosed with it by a professional

Honestly, I wouldn't be sure how to answer some of the questions.

In a 15 minute doctor's appointment I was "diagnosed" and medicated for bipolar. In another 15 minute appointment with a psychiatrist, we added OCD and general anxiety as well.

We stopped medications shortly after and it has been 20 years.

There has been a lot of discussion about self diagnosis, but I have the opposite problem. How can you decide a diagnosis with 10 questions and some pills?

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SoftTalker
3 hours ago
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Modern medicine has no incentive to diagnose you. Their incentives are to get you in and out as quickly as possible, get you on a recurring prescription, and schedule the next followup visit. And to do this for as many people as possible. As long as they don't accidentally kill you, they profit.
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w10-1
9 hours ago
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With rising ADHD awareness and corresponding academic waivers and medications used to enhance academic performance, I'm surprised the results are not much higher among students. I'm disappointed the paper failed to address the limitations of the study.

Note that the effect was stronger with wealth, as expected for performance- and excuse-seeking behaviors in high-achieving households.

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tharne
3 hours ago
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I'm starting to think ADHD is isn't a disorder at all. It's like obesity, if something afflicts 2% of the population, it's an individual disorder or issue. If it afflicts 20%+ of the population, it's either a systems/societal issue, or even more likely, a common personality trait that just happens to be very undesirable at this particular moment in time.
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antisthenes
2 hours ago
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ADHD is in part an adaptation to being bombarded with information in the Internet era.

I'm sure it's a legitimate disorder in the most severe cases as well, but like most psych quackery, there are way too many doctors and patients (80%+) too eager to self-diagnose and put people on a prescription and call it a day.

Doctors get money from pharma and people get to use their "disorder" as a convenient excuse for everything. That's what we call incentive alignment in economics.

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unaindz
38 minutes ago
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How is it an adaptation? My understanding is that the internet era disrupts ADHD people the most.
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purple_turtle
10 hours ago
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> internet questionnaire posted to social media sites

This has got to have a strong selection effect.

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autoexec
10 hours ago
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I think so, but that hasn't stopped it from being a popular way to gather data, or from often being the only source of data used in a paper. I get that internet surveys are dirt cheap and it's easy to get large number of responses, but you have to take the results with a such a massive boulder of salt that it seems more like a convenient way to churn out papers (or even an easy way to get a desired result) than a way to conduct actual worthwhile research.
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RobotToaster
7 hours ago
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> an easy way to get a desired result

Reminds me of that bit from yes prime minister https://www.youtube.com/watch?v=6GSKwf4AIlI

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JackeJR
7 hours ago
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Well a good surveyor would take into account order effects, i.e. the order in which questions were asked for example using Latin square designs.
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HPsquared
6 hours ago
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An uncontrolled selection bias that has changed over time as the social media landscape has changed.
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philipwhiuk
4 hours ago
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Yes, which is why the parent points out that it wasn't this.
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intended
9 hours ago
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The survey data can be measured against itself.
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panstromek
43 minutes ago
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Feels like a lot of jumping to conclusion in the article. It just assumes the causation like it's been proven.

It also assumes the finding is negative, which is more subtle but similarly problematic. Decline in memory might just mean that our brain is reallocating capacity for something else. It could also mean that the nature of what we're trying to remember has changed and it's now more difficult (e.g. There's more entropy in the data, or the data is changing more often).

Research good, article reasoning sloppy.

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verbify
11 hours ago
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I'm not sure it's social media as much as just mobile phones. I used to memorize phone numbers, addresses, directions, short notes, etc.

Memory works like a muscle - use it or lose it.

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Brajeshwar
10 hours ago
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Quite a while back (I think 10+ years), I began to realize that I was too dependent on Phones for even the basic info. So, I’ve gotten back to writing a lot more and use Notebook + pen. It helps. I still use Phones but I like the idea of being able to know numbers, and details without pulling out the phone for everything.

Using the dialpad instead of the Saved/Favorite Name in the phones is an interesting habit I built up even for most used numbers such as my wife, sister, and even the neighbors. I remember quite a few numbers; even if I cannot say it, I can look at a keypad and the muscle memory kicks in.

This is the same for some key Passwords, I quite often just type them out. Again, I might not remember but my fingers just glides through the keyboard. I remember it being handy at a hospital making some large payment saving my brother’s family from malaria in a Hospital in Bombay.

Btw, it is also fun to no look at Map on the phone for most journey that I already have an idea or traveling for the 2nd time and henceforth.

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apparent
10 hours ago
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I recently participated in a research study, and at one point, the researcher told me I was going to be given 3 minutes with a list of 20 words. I was to memorize as many of the words as possible. I would then be asked to perform a specific task, and then repeat back as many of the words as I could.

When I was given these instructions, I realized it's been many years since I had to memorize anything of meaningful length. I spent the first 20 seconds trying to remember as much as I could about how to memorize things, and the rest of the time actually memorizing. It truly is a muscle, and I was very out of practice.

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harvey9
2 hours ago
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Maybe we're memorising different things. On this site it will be remembering where different settings are found in different software tools, or the map of languages to libraries to functions.
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Gigachad
9 hours ago
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Zoomers these days have to memorize hundreds of reaction wojaks so they can bring up the correct one immediately in an argument.
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agumonkey
5 hours ago
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Not only we don't use it, but it seems that everything we see is of no value at all, streams of meaningless events
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Noaidi
5 hours ago
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This is more important than you know.

Since "A variety of memory systems are regulated by dopamine in the brain." [1], being force feed stimulation after stimulation will affect memory due to the diminishing release of dopamine of less stimulating events.

Being from the first year of Gen X I lived both of these lives. I remember reading newspapers on the subway going to work in Manhattan, having to focus to scan the small stock market print. Yes the news was stimulating, but comparatively slow and limited. I could never read the news at work, but in my later years, working in tech, it was a constant thing throughout the day.

Dopamine if the fuel of capitalism, even illegal capitalism, like the drug trade. This is not dismissive of capitalism, it is just a truth. The only thing that changed is that humanity has found a newer, stronger way to milk dopamine out of the human brain.

[1] https://www.sciencedirect.com/science/chapter/edited-volume/...

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agumonkey
2 hours ago
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I'm not sure it's entirely similar to what you mentioned, but I too remember the sensation of focus, that I'm struggling to get these days. I started to realize this after the web2.0 era.. thinking that ajax infused web apps would allow for better communication and thinking but it mostly unleashed noise, and whenever I run into old, limited forms of communication, i get the sense of value and focus back. Only the things that matter gets to your attention, and it reaches deeper and faster.
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cenamus
3 hours ago
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Gwern's writing on working memory might also interest you

https://gwern.net/dnb-faq

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politelemon
5 hours ago
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Likely both, the phone acts as an easy access point to social media, making the two a mentally lethal cocktail.
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JumpCrisscross
10 hours ago
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I’m in my thirties. I have to mail books around the world and country because so few of my friends read. (It’s worst in the 50+ cohort.)
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chadcmulligan
6 hours ago
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I've taken to audio books over reading, not sure how this will affect me but I do enjoy them.
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binary132
6 hours ago
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The AI writing here is so hard to read I honestly couldn’t finish the article.

“It’s not X, it’s Y” is a turn of speech that has to be consciously removed from a polite society.

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walterbell
4 hours ago
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> consciously removed

Please retain this turn of speech that helps autonomic (carbon) and automated (silicon) filters.

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binary132
3 hours ago
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I don’t think I quite caught your meaning.
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Infinitesimus
2 hours ago
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I mean this turn of speech makes it easier to identify hunan (carbon) or machine (silicon) content.

Took me a bit to figure it out too

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walterbell
1 hour ago
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Thanks, human :)
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hexbin010
9 hours ago
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I think I remember a study about this a few years ago but I can't recall the details
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grebc
8 hours ago
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Everyone also forgot their sense humour too.
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Geee
9 hours ago
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These are survey results, not actual memory test results. They answered positively to having "serious difficulty concentrating, remembering, or making decisions”.

I'd bet $1000 bucks that these people don't have actual memory problems.

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naIak
9 hours ago
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What an unspecific question that is. Could very well be memory problems, could very well be problems concentrating.
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tonis2
10 hours ago
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Its the low quality food, my memory improved a lot, after I stopped eating sugar and most refined foods. Theres even some research that Alzheimer starts from bad bacteria in the gut, that loves sugar.
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Krssst
9 hours ago
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Shitty food has been around for a long time. Some virus known for causing long-term effects in non-negligible parts of the population has been around since 2019.

> The increase in disability prevalence from 2016 to 2022 is likely attributable in part to the long-term effects of coronavirus disease 2019 (COVID-19).

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danielheath
6 hours ago
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Wild to me that the first mention of COVID is this far down the page.

Most people have been infected at least a couple of times may this point, and at this point it’s very well documented to cause lasting cognitive decline.

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watwut
2 hours ago
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The actual article (not the blog post) does mention it as likely partial cause.
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sigmoid10
2 hours ago
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This thesis contradicts the chart though. Why would older people be much less affected and the generation 70+ even show a negative trend if these people were far more likely to experience a more severe disease progression? You would expect them to be hit at least as hard (if not harder) as young people from those long term memory effects. The trend for the youngest age group also starts well before 2019.
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instagib
1 hour ago
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In my family, people 70+ stop using mobile phones or never used them in the first place.
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gcanyon
6 hours ago
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I was just talking with my wife yesterday about how readily people assume they have superior competence to or greater insight than experts in a given field. I'm not picking on you in particular, but your comment jumped out at me.

Substantially:

We've been eating "low quality" food of one type -- ultra-processed food -- since at least the '60s, so what's your explanation for the recency of the effect?

And some time earlier than that -- very roughly the 1920s and earlier -- we were eating "low quality" foods of a different type: spoiled, adulterated, and questionably-sourced food products, so do you claim that we started with poor concentration then, got better/had a heyday in the mid-20th century, and now we're declining again?

In short: what's your evidence to support your claim?

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Emma_Goldman
3 hours ago
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It's reasoned conjecture on an internet message board. Yes, it is over-stated. But if one treats quality of diet as one variable among many in cognitive capacity, which is the only sane approach, then trying to match the diet of a population to trendlines in society-wide cognitive performance is not going to tell you anything.
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marginalia_nu
7 hours ago
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Could be multiple factors. In my N=1 experience fiddling with various things in my life.

* Improving diet (primarily avoiding refined foods and sugar) generally improves my energy levels.

* Cutting out social media mostly improves concentration.

* Trying to avoid rumination such as problem solving or rehearsing arguments through meditative practices reduces stress levels, makes it easier to be present and react to things in front of you.

* Sleep is also pretty big for cognitive clarity. Having a consistent sleep schedule and not drinking coffee past noon helps with sleep.

But really, all of these seem to tie into each other. If you want to improve your diet, it's much harder if you are tired from lack of sleep or overstimulation. If you want to improve your sleep, you can't be scrolling social media all day. Mental exhaustion also makes awareness/meditation harder.

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iamacyborg
10 hours ago
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Bacteria (and your body) like sugar because it’s an easy to use fuel source. There’s absolutely nothing wrong with having reasonable amounts of sugar in your diet.
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somenameforme
6 hours ago
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The catch is that the body likes lots of things that are awful for it. For instance drug abuse isn't limited to humans - some bears have gotten addicted to huffing gas to get high. [1] Quite cute if it wasn't so awful! The big issue is that in modern times a whole bunch of things are going wrong - testosterone levels (adjusted for health/bmi/age) are declining, IQ is declining [2], basically every single psychological disorder is skyrocketing, and much more.

And the reason why isn't clear. So the most likely reason is that we're doing what humanity has done repeatedly and endlessly throughout history and likely accidentally poisoning ourselves with some thing or things -- things that we believe to be completely safe. So a precautionary principle approach to consumption is to consider what we evolved with and sugar definitely wasn't that. Sugar only really took off in the 19th century. And various further refined sweeteners like high fructose corn syrup and other such things only took off in the late 20th century.

[1] - https://www.dailymail.co.uk/news/article-2294757/Bear-ly-con...

[2] - https://www.popularmechanics.com/science/a43469569/american-...

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iamacyborg
6 hours ago
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> So a precautionary principle approach to consumption is to consider what we evolved with and sugar definitely wasn't that. Sugar only really took off in the 19th century.

We have evidence that apiculture has been a thing for well over 8,000 years.

Our bodies literally love to burn glucose as fuel and we perform better physically (and mentally I assume) when glucose is readily available.

We have literally evolved to be sugar burning machines.

Just don’t eat too much of it and you’ll be fine.

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bavell
5 hours ago
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You completely missed the point GP was making. Yes, sugar is an easy fuel source. The point is we have NOT evolved to consume massive amounts every day without breaks (i.e. daily) and without lots of fiber to buffer it.
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iamacyborg
3 hours ago
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I think you might be the one that’s missing the point. I’m saying some sugar is absolutely fine as part of a balanced diet, this isn’t a controversial point. Excessive calories are bad, whether they’re sugar or anything else.
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PeterStuer
9 hours ago
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As a European visitong the US, I am constantly amazed at how there is masses of sugar added to 'normal' food over there. You take a bite expecting a certain flavour, and go wtf did someone glace this with caramel or drop some candy in the flour mix?
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Ekaros
8 hours ago
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What is the reasonable amount? Could it be less than we currently have in many diets?
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iamacyborg
6 hours ago
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Less than the average American diet, probably. Less than other diets? It depends.
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aldarion
8 hours ago
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Reasonable amount being whatever you get from an occasional fruit snack.

Not whatever we have in the modern / food pyramid diet.

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parasti
9 hours ago
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"Eating sugar" and "reasonable amounts of sugar in your diet" are two very different things.
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iamacyborg
8 hours ago
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Sure, but like literally anything else, the dose makes the poison.
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sph
2 hours ago
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Define reasonable.
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iamacyborg
1 hour ago
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Not a major proportion of your daily caloric intake and not in excess of your daily caloric burn (unless you’re actively trying to gain weight). More if you’re doing a lot of aerobic exercise.
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naIak
9 hours ago
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There’s no reasonable amount of sugar, unless there’s fibre to go with it. Sugar by itself (ie refined sugar) is a poison.
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iamacyborg
8 hours ago
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What kind of content are you looking at to believe nonsense like that?
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madaxe_again
8 hours ago
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Apparently very popular content - a parent at my kid’s kindergarten wanted to make cake for their kids birthday, said they’d only use 1 tsp of honey in the whole thing.

Cue universal freak out in the parents’ WhatsApp group.

Apparently, sugar:

  - causes cancer
  - causes autism
  - causes hyperactivity
  - causes blindness
  - makes children indolent and lazy
  - will permanently ruin a child if they even look at it
It’s weird, IMO. I let my kiddo have sugar within reason, and somehow she’s leaner than any of the other kids in her class, who even already have rotten teeth at two, despite their sugar free diets. They feed them simple carbs almost exclusively, and are oblivious to amylase.

Perhaps it’s because she’s physically active - the rest of her cohort are pretty much forbidden from walking or running as those pose risks, and children must be sheltered from all conceivable risk so that they grow up into independent and capable adults.

I would argue that that - physical activity - is far more important than what you shove in your face.

There have been repeatedly, credibly and demonstrably shown to be significant benefits to not spending your entire life sitting on your ass - but I guess it’s harder to get off your ass than to proselytise about sugar being an evil and artificial harmful chemical that has no place in the human body - despite it literally being what we run off of.

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aldarion
8 hours ago
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"I would argue that that - physical activity - is far more important than what you shove in your face."

No, it bloody is not.

I used to drive a bicycle for 6 - 12 hours ever day while working in the delivery. I also didn't watch what I was eating.

I ended up getting fat and with haemorrhoids. So I had to quit cycling.

Then I spend some time (years actually) researching and slowly improving my diet.

Result? I lost weight, my haemorrhoids (and several other health issues) stopped acting up, and I am overall much healthier despite most of my physical activity being walking.

Yes, exercise is important. But it won't help you if you eat massive amounts of garbage food.

So stop talking stuff you have no clue about.

Also, we do not "run off of" sugar. Human body can run off sugar, or fat, or a combination of these. And argument could be made that running off fat is actually healthier. Body can in fact produce all sugar it needs with absolutely zero need for dietary sugar (note that doesn't mean you should go zero carb, just that carbs / sugars are not a metabolic necessity).

As for this: "who even already have rotten teeth at two, despite their sugar free diets. They feed them simple carbs almost exclusively, and are oblivious to amylase."

Uhh... carbs ARE sugars. It literally doesn't matter that you are avoiding "sugar" if you end up eating bread instead.

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watwut
2 hours ago
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Moderate exercising is conaistently shown to improve peoples health results. Study after study, it has positive impact.

It may or may not affect peoples weight (which is aesthetic issue on itself), but in terms of health improvements it is one intervention that consistently works.

They are not saying kids should be 8 hours on bikes whether they feel like or not. They are saying they should run around with other kids which something entirely different.

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madaxe_again
7 hours ago
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Sugars are carbohydrates. Carbohydrates are not sugars.
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Noaidi
5 hours ago
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"A carbohydrate (/ˌkɑːrboʊˈhaɪdreɪt/) is a sugar"

https://en.wikipedia.org/wiki/Carbohydrate

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kcaj
8 hours ago
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The dismissal in these comments is astonishing.
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bsenftner
5 hours ago
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I agree. Over the last 10 years, I've been growing in awareness of how in general people, developers, and their managers, and their company owners are incapable of the communications necessary for basic cooperation in project teams, in their own self planning, and forget about their ability dealing with more complex issues like market & social-political manipulation of the public. Far too many people appear to only be capable of 1-step forward planning. Seriously. My career has become a consultant that can see multiple steps forward and when explaining this insight I get everything from angry refusals to daunting obedience, but never a competing insight, only 1 step past their present situation. People are way to quick to enter into short sighted conflict, and then completely ignore their real responsibilities.
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rpdillon
3 hours ago
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I was ready to dismiss the article on the basis of its sensationalist writing, but I wanted to dig into the study as well. After reading through it, I asked my wife, who's a sociologist and researcher, what she thought about these conclusions based on the survey data. She said that collecting survey results in this kind of longitudinal study is considered a valid source of data about trends like this, but she said the obvious caveat is that you can't determine causation or what the practical impact is. The article does not hesitate to state hypothesis as fact, which is probably where the dismissals are coming from.
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yc-kraln
8 hours ago
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My big issue with this study is it points to a cause. How can they know the issue is social media, and not, say, the climbing atmospheric CO2 or other long-COVID related issues?
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xeyownt
8 hours ago
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The root cause is likely to the surge of dopamine in the brain related to activities like scrolling social media, fast-paced tik-tok videos, porn, etc. This means that the brain is so much addicted to this dopamine that normal level are no longer enough to be functional.
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Noaidi
5 hours ago
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Please see my post above about dopamine and memory. The low dopamine effects memory as well as concentration.

See:

Novelty and Dopaminergic Modulation of Memory Persistence: A Tale of Two Systems

https://pmc.ncbi.nlm.nih.gov/articles/PMC6352318/

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js8
7 hours ago
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There can be many causes. Aside from social media, games, porn and AI, it can also be caused by the decline of the living standards or increase of stress in the West due to shift from social-democratic to neoliberal economic policies.
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watwut
2 hours ago
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Study does not point at causes. The blog post does. A blog post inspired by a study and study itself are two different things.
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alsko
11 hours ago
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penguin_booze
1 hour ago
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The irony is that we're now telling ourselves, "attention is all you need".
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boxerab
3 hours ago
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spike protein is known to travel across the blood brain barrier

https://pubmed.ncbi.nlm.nih.gov/35052867/

But of course something introduced between 2013 and 2023 that gets your cells to manufacture spike protein, with no way of regulating the spike dose, couldn't possibly be connected with memory decline.

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sigmoid10
2 hours ago
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If you approximate the youngest age group's data points as a linear trend, it starts well before 2019. After all, they originally were at the same level as the next two higher age groups. So even if you assume that the entire rise after 2020 was due to this cause, it would only explain ~50% of the total effect. And it would not explain at all how older people who were most likely to experience a severe disease (particularly before vaccines) actually show a slight inverse trend, while the age groups in between show barely any statistically significant effect. If you really want to blame covid, I would assume closing schools and mass remote-schooling to protect old people is a much more likely explanation for the trend among the youngest people post 2020. This is the one thing that truly sets them apart from all the other age groups.
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add-sub-mul-div
37 minutes ago
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You people are suffering from something worse than long covid.
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marifjeren
3 hours ago
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Why would that differentially affect young people?
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boxerab
2 hours ago
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That is a good point. Injection rates were higher with older population. I would say that younger immune systems are more robust, potentially leading to exaggerated inflammatory responses to spike protein, which could heighten neuro-inflammation and cognitive impacts.
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elif
5 hours ago
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The surging decline in typewriters in the 90's had nothing to do with how bad typewriters were or how they were used.

It's a symptom of society barrelling toward exponential progress more than a pathology imo

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kevindamm
4 hours ago
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We're told not to feed the wildlife at parks and beaches because of the dangers when they become dependent on visitors for their food source. It changes their natural behavior to the extent that it becomes difficult to revert to natural food sources in the absence of visitors.

(there are other behavioral and disease-related dangers but they're not as appropriate to this metaphor)

I think the more alarmed voices in this comment thread are not reacting to the change or "exponential progress" but are instead concerned about the impact of becoming reliant on something else to do our remembering.

This last part is anecdata (but no worse than the survey data in TFA), I think smartphone users have not really lost the ability to memorize, in general, but that the things being memorized are different. If the memory test (mentioned in a cousin-comment) had a set of 20 memes instead of 20 words, I expect most study participants would be a lot better at recall.

I suppose the question of "is this like junk food, though?" may be relevant.

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pessimizer
5 hours ago
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I think it has little or nothing to do with screens. Young people are just adapting to a society that thinks of people who remember things as annoying at best and troublemakers or terrorists at worst. We've become a say the words society, not a have something to say society. You don't have to remember for very long in order to repeat something, in fact it can become a problem because you'll remember back when you were told to repeat the opposite.

It's also very difficult to claim to be a victim if everyone still remembers what you did.

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tsoukase
5 hours ago
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The memory that is involved is the working memory, which is similar to the CPU cache. The short term is RAM and the long term is the physical storage.

The problem is completely reversible if you stop electronic screen usage and stick to traditional education (nature, friends, books etc)

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kikimora
7 hours ago
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One on the few pieces I was able to read from start to finish.
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throwaway2027
11 hours ago
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Wouldn't it also have something to do with it being hard to judge quality in the quantity of information today?
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librasteve
8 hours ago
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what is a “decline surge”?
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marginalia_nu
7 hours ago
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It's a bit like an increase plummet but worse.
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metalman
9 hours ago
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this is real. the cognitive environment has changed, where the the things that are retained in order to survive and thrive, one, have been removed and comodified, and are no longer absolutly personal and private, and two, there is a never ending merry-go-round of changing passwords, apps, submissions,sign ins, acciunt verifications, two factor authentications, to get at, what was once absolute, personal, and private. What has been created is compliance and a lack of personal agency, and any motive to give a damn....whats the point of remembering something that you have zero chance of holding onto and building from? A population stuck in that mid stage of grief , always letting go......
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begueradj
10 hours ago
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Not surprised when you are born in the smartphone era where your attention and memory are constantly hijacked.
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hulitu
9 hours ago
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> Study finds memory decline surge in young people

Who would have thought that bread (fast food) and circus (smartphone) would dumb them down. /s

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Thiez
7 hours ago
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So fast food was invented around the same time as the smartphone?
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farrighttroll
7 hours ago
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dysgenics at work
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