The Skinny on Skin
The skin, which is the largest organ of the human body, is actually
waterproof in only one direction -- preventing water from coming in,
but allowing water, mostly in the form of perspiration, to pass from
inside out. Lenihan calls human skin "the original shrink-wrap."
Stripped and spread out, the skin of the average male would total about
20 square feet, about 3 square feet more than the average woman.
The outer layer of skin -- onto which many of us slather all
sorts of moisturizing concoctions -- is made up of dead cells, most
about the thickness of tissue paper (about 1 millimeter or 0.0394 of an