One in 500 humans has one blue eye and one brown eye.
145
Roughly a quarter of the world's people live in China.
50
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
Most people smile when they are frustrated, according to a study.
15
On average, a person will spend about five years eating during his or her lifetime.
90
During your lifetime, you'll eat about 60,000 pounds of food, that's the weight of about 6 elephants!
53
Yawns are more contagious among people with closer relationships.
163
Males sweat 40% more than females.
104