Most dust particles in a US house are made from dead skin. See more

The first owner of the Marlboro Company died of lung cancer. See more

Your system of blood vessels is over 60,000 miles long. That's long enough to go around the world more than twice! See more

The heart beats about 100,000 times each day. See more

Blood is about 78 percent water. See more

Heroin used to be a cough medicine for children. A German company (Bayer) registered heroin as a trademark. See more

Julius Caesar, Alexander the Great, and Dostoyevsky were all epileptics (aka brain disorder). See more

In fact, Einstein couldn't speak fluently when he was nine. His parents thought he might be retarded. See more

The average person spends 2 weeks of its life kissing. See more

The average person spends 2 weeks of it's life waiting for a traffic light to change. See more

Women who read romance novels have sex twice as often as those who don't. See more

Thirty-five percent of the people who use personal ads for dating are already married. See more

A shrimp's heart is in its head. See more

It is physically impossible for pigs to look up into the sky. See more

Wearing headphones for just an hour will increase the bacteria in your ear by 700 times. See more

The word "set" has more definitions than any other word in the English language. See more