Originally Posted By: slolerner
Then hair on your head doesn't let sweat evaporate...

Edit: Then how were PEOPLE intended to keep themselves clean? Flaw in the Grand Design. Water doesn't get rid of oily hair. Shampoo comes from the shampoo factory AFAIK.

Hairs grow, stop growing, and the follicle sheds them and takes a short break before growing a new hair. Evolutionarily, your hair is supposed to remain oily, that's part of its disposable design. Not all animals are that way, it varies. Oily is actually a bit uncommon, but we're far from unique there among mammals. Oily hair doesn't retain heat very well compared to fluffy dry hair, and that's what most animals rely on it for. (warm and dry)

I work for the Department of Redundancy Department