Your fingernails grow faster in summer.
744
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
If your DNA was stretched out it would reach to the moon 6,000 times.
256
You can't tickle yourself.
29
By weight, Bone is five times stronger than steel.
417
The human brain is more active during sleep than during the day.
28
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
On average a woman has 4 sexual partners in her lifetime.
-143