Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Only 1 person in 2 billion will live to be 116.
49
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
The human body contains over a billion miles of DNA.
147
Your ears secrete more earwax when you are afraid than when you aren't.
229
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Every year your body replaces 98% of your atoms.
119