Sun exposure may have a range of other beneficial effects: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5086738/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5

Sun exposure may have a range of other beneficial effects: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5086738/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5086738/ In the end, I think it's flatly obvious that too much or too little (as anyone who lives in northern latitudes can tell you) sun exposure is bad for you. There's an ideal range somewhere.