It takes about 20 seconds for a red blood cell to circle the whole body.
102
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
One human hair can support 3 ounces.
191
The average sperm cell swims at 8 inches per hour.
76
Every year your body replaces 98% of your atoms.
119
Our Right Lungs takes more air than our left lung.
194