Kissing an infection-free partner is good for your teeth!
141
Our brains have a negativity bias and will remember bad memories more than good ones.
15
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
The whiter your tongue, the more germs there are on it.
88
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Contrary to popular beliefs, chocolate does not cause acne.
63
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
The average person who stops smoking requires one hour less sleep a night.
79