There are more bacteria in your mouth than there are people in the world.
60
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
From the age of thirty, humans gradually begin to shrink in size.
1
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
Lack of water is the #1 trigger of daytime fatigue.
148
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The human brain is insensitive to pain.
76