It is possible to go blind from smoking too heavily.
50
Your tongue is the only muscle in your body that is attached at only one end.
173
A sneeze can travel as fast as 100 miles per hour.
43
The human brain is insensitive to pain.
76
Music has the ability to repair brain damage and return lost memories.
62
Banging your head against a wall uses 150 calories an hour.
57
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15

