Live data from Hacker News

Men's average testosterone levels have halved in last 50 years

theguardian.com

71–80 of 87 posts

Re: Men's average testosterone levels have halved in last 50 years

#71
post #50

Earlier quoted context omitted.

Which is a byproduct of testosterone, so...

Even if more testosterone means more DHT, most of the variability in hair loss is explained by differences in DHT sensitivity levels.

It would explain why fat people are more often than not bald anyway and why Styropyro has the most hair I've ever seen on a person regardless of his condition.

Re: Men's average testosterone levels have halved in last 50 years

#73

I don’t understand why obesity seemingly gets tossed aside when this subject comes up. It’s the one problem you can see in plain sight at any gathering of people.

Because especially in this forum, obesity literally does not exist and if it does is never the person's fault but rather big food producing addictive meals / not walkable cities / exercise is bad for your joints / et cetera ...

Re: Men's average testosterone levels have halved in last 50 years

#75
Also, aging populations.

There's a larger proportion of older males in the population now than there has been in most of history. Testosterone decreases as we age. The average is across _all_ males, even those outside of reproductive years. I assume if we controlled for outliers, that the results would be fairly comparable across time.

Re: Men's average testosterone levels have halved in last 50 years

#77
post #75

Also, aging populations. There's a larger proportion of older males in the population now than there has been in most of history. Testosterone decreases as we age. The average is across _all_ males, even those outside of reproductive years. I assume if we controlled for outliers, that the results would be fairly comparable across time.

Per the article, they did at least try to control for age (it'd be a completely uninteresting result if they hadn't). The big concern is that they did _not_ control for obesity or diabetes.

Re: Men's average testosterone levels have halved in last 50 years

#78

Lift weights. Nobody lifts weights or does labor like they used to. Endocrine function can still be normal despite obesity. There are plenty of fat guys with solid testosterone levels because they work with their hands all day. I'm not saying that's all there is to health, far from it, but what kind of bubble does one have to live in to not see this counterexample? Do we just casually ignore them because they fit und…

> Nobody lifts weights or does labor like they used to.

I'm fairly sure _vastly_ more people lift weights today than in the 70s. At that point it was, well, not niche exactly, but you didn't have anything _remotely_ like the number of gyms around. Can't offhand find figures for back to then, but apparently it's up ~60% in just the last two decades.

Re: Men's average testosterone levels have halved in last 50 years

#80

Lift weights. Nobody lifts weights or does labor like they used to. Endocrine function can still be normal despite obesity. There are plenty of fat guys with solid testosterone levels because they work with their hands all day. I'm not saying that's all there is to health, far from it, but what kind of bubble does one have to live in to not see this counterexample? Do we just casually ignore them because they fit und…

> Nobody lifts weights or does labor like they used to. I'm fairly sure _vastly_ more people lift weights today than in the 70s. At that point it was, well, not niche exactly, but you didn't have anything _remotely_ like the number of gyms around. Can't offhand find figures for back to then, but apparently it's up ~60% in just the last two decades.

I guess you missed the part about physical labor in my comment.

You're looking for an answer via a really poor proxy. Lifting weight is lifting weight. Gyms are more popular because of the lack of sensible alternatives for a comprehensive workout. Any data you find about them will also be biased towards the recent decades of office work and working from home. Is there any way to tell if gyms are even picking up the slack? My guess would be overall exercise is down, even for those who go to the gym regularly.

Post reply on HN