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
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
India used to be the richest country in the world until the British invasion in the early 17th Century.
37
Your hair grows faster in the morning than at any other time of day.
91
Your ears secrete more earwax when you are afraid than when you aren't.
229
When your face blushes, the lining of your stomach turns red, too.
154
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
A sneeze can travel as fast as 100 miles per hour.
43