Redheads require more anesthesia to 'go under' than other hair colors do.
51
In one day, adult lungs move about 10,000 litres of air.
11
Fingernails grow nearly 4 times faster than toenails!
30
Every hour one billion cells in the body must be replaced.
17
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
People who sleep late have more mental stamina and can outperform early risers.
33
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Only 1 person in 2 billion will live to be 116.
49