The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Chewing gum boosts your brain power.
285
Yawns are more contagious among people with closer relationships.
163
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46