The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
The human brain is insensitive to pain.
76
One out of 20 people have an extra rib.
66
Surgeons who listen to music during operations perform better than those who don't .
87
The average sperm cell swims at 8 inches per hour.
4
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
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According to a study conducted by the University of South Carolina, Marijuana can be used to reduce inflammation and treat autoimmune diseases such as arthritis, lupus, colitis, and multiple sclerosis.
25
India used to be the richest country in the world until the British invasion in the early 17th Century.
37