It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
There's 100 trillion good bacteria living in your body.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The average person's skin weighs twice as much as their brain.
131
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
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