If you are cold you are more likely to be hungry because you use energy to keep warm.
143
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Every year your body replaces 98% of your atoms.
119
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
The average person's skin weighs twice as much as their brain.
131
Enamel is hardest substance in the human body.
61