Weird Things Humans Do
Credit: naraosga | sxc.huCry
How odd that sadness causes water to spill from our eyes! Among all animals, we alone cry tears of emotion.
Not only do they serve the purpose of communicating feelings of distress, scientists believe tears also carry certain undesirable hormones and other proteins that are produced during periods of stress out of the body, which may explain the cathartic effect of "a good cry."

Credit: Aprescindere | Dreamstime
Credit: Dreamstime
Credit: Andrzej Gdula | Stock Xchng
