Your fingernails grow faster in summer.
744
The human brain is more active during sleep than during the day.
28
The human sigh acts as a physiological reset button.
23
The world's shortest man measures only 21.5 inches.
73
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
You forget 90% of your dreams.
256
It takes about 20 seconds for a red blood cell to circle the whole body.
102
