Of course, PFAS and microplastics aren’t great for sperm health, but neither were leaded gasoline and DDT before they were curtailed.
Fat directly converts testosterone to Estrogen via a process called aromatization.
Personally my Testosterone close to doubled when going from 25% bodyfat to 13%. I get blood tests regularly and can see the levels fluctuate pretty closely with fat levels
[1]https://www.cremieux.xyz/p/why-are-testosterone-levels-risin...
It’s the one problem you can see in plain sight at any gathering of people.
It’s like we need something more interesting than “people sit too much and eat too much”.
Option one: obesity and weight problems. Statistically 77% of your audience is either overweight or obese because 77% of Americans are either overweight or obese.
Option two: feminism, microplastics, anime, or literally any other thing than option one.
Interesting…
Lead Paint elimination started in the Early 70s IIRC, so the same time period :)
In other words, if you’re looking for a boogeyman, blame sedentary lifestyles and ultra processed foods.
A 50% drop most likely has a multifactorial explanation, being told that some traditional male traits are bad (and thus lower well being or social status) or medicated away (see e.g the rise in ADHD and Autism diagnosis) might have some effect.
I'm not nearly knowledgable enough to give any reasonable estimate but it would not surprise me if it was higher than 0%.
As well as a zillion other things. And "linked" in which direction?
Others are trying to regulate pesticide, junk food (obesity, diabete). For instance nutriscore in Europe, also the recent change on pesticide allowed.
I'm not sure it will be enough, but at least they are attacking to the root cause. You're not just adding even more problem, like the increased cardiovascular event or erectile dysfunction with overdosed TRT.
Same for the semaglutides that everyone and their mother take in the usa, people wouldn't need them so much if they didn't eat absolute crap all the time.
We know that semaglutides have also side effects, and that rebound happen when you stop, but I guess it's better than just fixing the food lobby ?
So if levels are falling, is prostate cancer lowering a little bit ? But that will be hard to determine due to the advancement of Medical Treatment over the past 50 years.
> Rising levels of obesity and diabetes
Plastic Bottles also replaced glass starting in the early 70s too. I remember reading some type of plastic can leak estrogen into the food. So seems a lot of things happened of the past 50/60 years that will impact ones health negatively.
Wither Ozempic? I've seen several friends and family members use it to great effect and thought it might sweep the nation. But I imagine most of the same barriers that keep people from eating better or moving more are also in play when trying to engage with any new habit.
You should be highly skeptical of any claims of drastic variance in human biology over short time periods.