You inhale about 700,000 of your own skin flakes each day.
29
In the average lifetime a person will breath in about 44 pounds of dust.
21
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Those who get out of bed by 7am are more likely to be thinner and happier.
19
The human sigh acts as a physiological reset button.
23

