If the human eye was a digital camera, it would have 576 megapixels.
25
It takes about 20 seconds for a red blood cell to circle the whole body.
102
In one day, adult lungs move about 10,000 litres of air.
11
The average sperm cell swims at 8 inches per hour.
4
The human brain is more active during sleep than during the day.
28
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Your fingernails grow faster in summer.
744