The average sperm cell swims at 8 inches per hour.
76
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Only 1% of bacteria cause disease.
45
Vicks inhalers can cause you to test positive for Meth on drug tests.
41
Redheads require more anesthesia to 'go under' than other hair colors do.
50
You're born with 300 bones, but when you get to be an adult, you only have 206!
17
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
A person can live without food for about a month, but only about a week without water.
156