Sunlight Heals and Cures. - But How?

It’s not just Vitamin D. Blue-rich light synchronizing circadian clocks is just as important

You have heard all the warnings about too much exposure to sunlight, and the risk of developing skin cancers. And that is true. US Navy personnel extensively exposed to sunlight have an 8-fold increase in malignant melanomas. And a similar 8-fold increase in malignant melanomas was found in Swedish women with extended exposure to sunlight, even if they …