Kissing an infection-free partner is good for your teeth!
141
Every time you sneeze some of your brain cells die.
113
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
The human brain is more active during sleep than during the day.
28
The average human body contains enough iron to make a small nail.
50
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Your tongue is the only muscle in your body that is attached at only one end.
173