It takes 17 muscles to smile, 43 to frown.
65
Common pesticides such as roach, termite, and flea insecticide can be found in the bodies of the majority of Americans.
11
Redheads require more anesthesia to 'go under' than other hair colors do.
51
Ernest Hemingway survived through anthrax, malaria, pneumonia, dysentery, skin cancer, hepatitis, anemia, diabetes, high blood pressure, two plane crashes, a ruptured kidney, a ruptured spleen, a ruptured liver, a crushed vertebra, a fractured skull, and more.
67
A study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5
The human brain is insensitive to pain.
76
A person can live without food for about a month, but only about a week without water.
156
The first patented condom was meant to be reused!
47