During menstruation, the sensitivity of a woman's middle finger is reduced.
47
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
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14
You would need to smoke between 20,000-40,000 joints to be at risk of dying of a THC overdose.
12
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
About 400 different kinds of microbes live on and in the human body.
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