The human brain is more active during sleep than during the day.
28
Surgeons who listen to music during operations perform better than those who don't .
87
The human brain is insensitive to pain.
76
Every day, the average person swallows about a quart of mucous.
5
The tongue is the strongest muscle in the human body.
50
Your ribs move about 5 million times a year, every time you breathe!
60
Your heart rate can rise as much as 30% during a yawn.
69
By weight, Bone is five times stronger than steel.
417