Human thigh bones are stronger than concrete!
63
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Smokers get ten times more wrinkles than non-smokers.
171
Men have larger hearts; women's hearts beat faster.
77
A person can live without food for about a month, but only about a week without water.
156
