While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50
The average sperm cell swims at 8 inches per hour.
4
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Putting sugar on a wound or cut will greatly reduce pain and speed up the healing process.
25
Ingrown toenails are hereditary.
15
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164