Perhaps, but I think we can drill down a bit further. Many third world countries have foods much, much more processed than we do in USA, yet they don't exhibit

Perhaps, but I think we can drill down a bit further. Many third world countries have foods much, much more processed than we do in USA, yet they don't exhibit such effects generally. My own family is a huge old Irish/German conglomeration...I have 12 uncles and aunts. There's very clear demarcation of millenials vs the older ones, and especially those raised in a rural setting vs urban. I'd honestly like to see studies of how many, let's say 'metro' men spent summers bucking hay or stripping tobacco as a kid. I did, but I'm clearly less grizzled than my cousins who did such work year round as a kid. And I don't mean any of this to be insulting. I'm way less manly than my own father, and a millennial who spent childhood glued to screens.