The human brain is insensitive to pain.
76
It takes 17 muscles to smile, 43 to frown.
65
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14
When you get blackout drunk, you don't actually forget anything; your brain wasn't "recording" in the first place.
23
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
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
While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50