Chocolate, sex, and laughter are all important for a healthy brain.
37
There's 100 trillion good bacteria living in your body.
17
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Smokers get ten times more wrinkles than non-smokers.
171
There are more bacteria in your mouth than there are people in the world.
60
More people have a phobia of frogs than rats.
41
The tongue is the strongest muscle in the human body.
50