Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
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
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Your body is creating and killing 15 million red blood cells per second!
14
Poor eyesight (myopia) is associated with higher IQ.
232
It is possible to go blind from smoking too heavily.
50