The human sigh acts as a physiological reset button.
23
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
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
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
Within three days of death, the enzymes that once digested your food begin to eat you.
22
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
If your DNA was stretched out it would reach to the moon 6,000 times.
256