The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
One human hair can support 3 ounces.
191
The human brain doesn't stop developing until about 25 years old.
102
Chewing gum boosts your brain power.
285
When you take a step, you are using up to 200 muscles.
886
Yawns are more contagious among people with closer relationships.
163
Poor eyesight (myopia) is associated with higher IQ.
232