Human teeth are almost as hard as rocks!
47
Redheads require more anesthesia to 'go under' than other hair colors do.
50
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Contrary to popular beliefs, chocolate does not cause acne.
63
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Clinophobia is the fear of beds!
30
Wearing tight pants can lead to impotence in men.
120
The right lung takes in more air than the left.
30