When you take a step, you are using up to 200 muscles.
886
One human hair can support 3 ounces.
191
The human body contains over a billion miles of DNA.
147
Every year your body replaces 98% of your atoms.
119
The average person's skin weighs twice as much as their brain.
131
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
The average sperm cell swims at 8 inches per hour.
76
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