Guess what happens when you are wearing sunglasses? Much less sunlight reaches the optic nerve, much less warning is sent to the pituitary gland, much less melanin s produced - and much more sunburn results. If you're reading this on the beach with your Ray-Bans on, do your skin a favor - take them off.
Survival Of the Sickest
A Medical Maverick Discovers Why We Need Disease
Dr. Sharon Moalem