In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
The human brain doesn't stop developing until about 25 years old.
102
Your tongue is the only muscle in your body that is attached at only one end.
173