It takes about 20 seconds for a red blood cell to circle the whole body.
102
One quarter of the bones in your body are in your feet!
36
Chewing gum boosts your brain power.
285
Common pesticides such as roach, termite, and flea insecticide can be found in the bodies of the majority of Americans.
11
Human teeth are almost as hard as rocks!
47
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Banging your head against a wall uses 150 calories an hour.
57
