Ingrown toenails are hereditary.
15
Every time you sneeze some of your brain cells die.
113
The average person who stops smoking requires one hour less sleep a night.
79
The human brain doesn't stop developing until about 25 years old.
102
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
It takes about 20 seconds for a red blood cell to circle the whole body.
102
The smallest human penis ever recorded was just 5/8 of an inch long!
77
If your DNA was stretched out it would reach to the moon 6,000 times.
256