It is possible to go blind from smoking too heavily.
50
The average person has over 1,460 dreams a year!
69
About 400 different kinds of microbes live on and in the human body.
-3
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
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
Your heart rate can rise as much as 30% during a yawn.
69
Your heart will pump about 212 million liters in its lifetime.
26