The average sperm cell swims at 8 inches per hour.
4
It is possible to go blind from smoking too heavily.
50
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
-3
Applying vodka to your face helps tighten your pores and can reduce the risk of acne breakouts.
20
The human body contains over a billion miles of DNA.
147