One out of 20 people have an extra rib.
66
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
Your skin is actually an organ.
88
Only 1% of bacteria cause disease in humans!
2
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
You're born with 300 bones, but when you get to be an adult, you only have 206!
17
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
A study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5
