Every hour one billion cells in the body must be replaced.
17
Your body is creating and killing 15 million red blood cells per second.
50
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Clinophobia is the fear of beds!
30
Taphephobia is the fear of being buried alive!
44
It takes 17 muscles to smile, 43 to frown.
65