Your heart rate can rise as much as 30% during a yawn.
69
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
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
Every year your body replaces 98% of your atoms.
119
Common pesticides such as roach, termite, and flea insecticide can be found in the bodies of the majority of Americans.
11