Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Human teeth are almost as hard as rocks!
47
The first patented condom was meant to be reused!
47
Music has the ability to repair brain damage and return lost memories.
62
When your face blushes, the lining of your stomach turns red, too.
154
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130