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
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
Fingernails grow fastest on the hand you favor.
44
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Smokers get ten times more wrinkles than non-smokers.
171
Chocolate, sex, and laughter are all important for a healthy brain.
37
Flu shots only work about 70% of the time.
18

