It's obesity 100%. You can try to blame microplastics all you want but plastics have been around for a long time now and the amount of people having issues in the last generation has skyrocketed along with the obesity epidemic.
You cannot sit around on screens all day, eat unhealthily, never lift weights, never do any cardio and expect to have enough testosterone to reproduce.
At the same time, the world health organisation estimates 95% of people are inactive. I think a lack of activity is the biggest cause of the obesity crisis. Especially these days where even older generations who weren't raised in this modern environment are often chronically online nonetheless.
Sure, but what I think I'm ultimately trying to say is: that problem probably isn't getting solved anytime soon, given what we've turned the world into with technology.
We can control sugar in the food supply, though. It would do quite a bit if we'd just stop shoving it where it doesn't belong.
And I will state again that you're not going to solve the problem of people being active anytime soon - that's a personal choice people have to make for themselves, and we've seen it's not happening.
You cannot sit around on screens all day, eat unhealthily, never lift weights, never do any cardio and expect to have enough testosterone to reproduce.