Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
Every cigarette smoked cuts at least five minutes of life on average, which is roughly the time it takes to smoke one cigarette.
118
Contrary to popular beliefs, chocolate does not cause acne.
63
Your heart rate can rise as much as 30% during a yawn.
69
Enamel is hardest substance in the human body.
61
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
Common pesticides such as roach, termite, and flea insecticide can be found in the bodies of the majority of Americans.
11
Motorists who talk on cell phones are more impaired than drunk drivers with blood-alcohol levels exceeding .08!
49