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
Your body is creating and killing 15 million red blood cells per second.
50
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Chocolate, sex, and laughter are all important for a healthy brain.
37
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
There are more bacteria in your mouth than there are people in the world.
60
The lifespan of a tastebud is ten days.
130
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149