If sunlight causes skin cancer, why was it basically unheard of 100 years ago when people spent way more time outside?
Extremely obvious and easy to answer: because people wore hats WAY more, huge wide brimmed hats, as well as hoods, and wore long flowing clothes that virtually covered them up even in the hottest of days. Look at historical clothing, far more modest and less revealing than our degenerate age, for both men and women.
As a result, people had natural shade on their skin most of the day and avoided skin cancer, which of course existed back in the day. Just because you aren't aware of these things doesn't mean it didn't exist.
I know most sunscreens are toxic, and I avoid those unless going to the beach for heavy duty sun exposure. On most days, I simply apply this:
https://a.co/d/iTwviMI to the face, hands, and neck.
Still extremely easy to get my vitamin D through the arms or legs if I'm wearing shorts. Never had any vitamin D issues in my life. On the other hand, girls half my age think I'm the same age as them.
Other guys need to go half-way around the world to attract younger women. I just wear sunscreen and save myself the hassle. My wife will be significantly younger than me, anywhere from 8-20 years, because I take care of my health. Health is beauty. Being healthy = being beautiful. It's that simple and I couldn't care less what anyone thinks because this is objectively true.
And yes obviously women are attracted to more than looks. But if you're someone who looks like a guy their own age, but with decades of extra knowledge, experience, and resources, it's incredibly easy to crush the competition.
The only risk is if sunscreen has some kind of hidden long-term danger. It's a risk I'm willing to take, because I don't like wearing hats or long-sleeve stuff in the summer all the time. So I stick with a lightweight sunscreen that I linked above.
Also, I'm going to move these sunscreen posts to the relevant forum.