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
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
The human sigh acts as a physiological reset button.
23
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
If you hold farts in during the day, they'll just come out when you sleep.
16
There are about 1,400 different species of bacteria in your belly button.
10
The average sperm cell swims at 8 inches per hour.
76