A person does radiate a lot of heat through the eyes. It can easily be felt when you or another person has a fever. But wow... I didn't realize that so much of the body's heat could be kept in by wearing sunglasses. It's the first time I think I've come across that information that I can remember. It's a good thing I EDC sunglasses I suppose. <img src="/images/graemlins/cool.gif" alt="" />