1. A single sneeze travels 100 miles per hour and shoots 100,000 germs into the air.
2. You’re born with just 1 pint of blood, but by the time you’re an adult you have 4 to 5 quarts.
3. The human body contains enough fat to make seven bars of soap.
4. Humans are capable of echolocation, just like a bat or a whale.
5. It’s impossible to hum while holding your nose. Go ahead, try it!