***Environmental toxins***
Say what? WE were raised in the days of DDT, Dioxins, PCBs, leaded gasoline, leaded paint, and we are still doing well at 72!
It's way worse now (glyphosate, flouride, gmo, etc). But to your point, the cancer epidemic of Boomers might easily be explained by what you've said.
In my last response to you I included an “etc” in my comment. I should have mentioned in that “etc” the poisons folks continually put on their skin in one way or another. Makeup, hair products, lotions, perfumes and sunscreens to name a few. They are all poison. People generally do not understand that if it goes on you it goes in you. Ask yourself when looking at the ingredients - “would I eat that?”
Further if you look around there are many things in place that block UV from sunlight - car windows, house windows, glasses, clothing, and the aforementioned sunscreens. There has to be a long term detriment to blocking the sun.