Sunscreen

In this month's Here's A Thought... IMA contributor Jenna McCarthy questions the conventional wisdom behind sunscreen and skin cancers. 'While sunscreen does reduce the risk of some non-lethal skin cancers, the promise that it is the holy grail of preventing the killer ones is questionable at the very, most generous best.'

Dr. Sunil Wimalawansa explains how the sun gives very little vitamin D through the skin even without sunscreen, and the best ways to get vitamin D is through supplementation.