About 400 different kinds of microbes live on and in the human body.
-3
About half of all Americans are on a diet on any given day.
29
Redheads require up to 20% more anesthesia to be knocked out.
112
Contrary to popular beliefs, chocolate does not cause acne.
63
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
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
Smokers get ten times more wrinkles than non-smokers.
171
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112