Blood is about 78 percent water. See more

The heart beats about 100,000 times each day. 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 first owner of the Marlboro Company died of lung cancer. See more

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

Apples, not caffeine, are more efficient at waking you up in the morning. See more

The shortest war in history was between Zanzibar and England in 1896. Zanzibar surrendered after 38 minutes. See more

Winston Churchill was born in a ladies' room during a dance. See more

The average chocolate bar has 8 insects' legs in it. See more