Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
Yawns are more contagious among people with closer relationships.
163
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
The higher the income, the more likely an American man will cheat on his wife.
94
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
In the presence of attractive women, men find running easier, take more risks, donate more money, consume more calories, and talk more.
28