If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Enamel is hardest substance in the human body.
61
The human body contains over a billion miles of DNA.
147
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The average sperm cell swims at 8 inches per hour.
76
Every year your body replaces 98% of your atoms.
119