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.
21
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The average person's skin weighs twice as much as their brain.
131
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Your thumb is about the same size as your nose.
124
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
There are about 1,400 different species of bacteria in your belly button.
10
If your DNA was stretched out it would reach to the moon 6,000 times.
256