While I am a firm believer that chemicals are not the answer for everything, I think this statement is also too simplistic....

"I've always felt that the cancer-sun exposure theory was very simplistic. We've been living under the sun for eons yet skin cancer is a relatively new disease. I think some day they will find the cause for cancer and my bet is it won't be directly related to sun exposure. I know supper healthy people who passed from cancer and other super unhealthy people who eat junk and worship the sun who are living into their 80s so how can we say that we really know anything at all!"

Of course people have been exposed to the sun forever. Live expectancy was maybe 40 years if you were lucky. When you died, you were just dead...nobody knew why. We hear more about ALL diseases now. That doesn't mean they are new.