One human hair can support 3 ounces.
191
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Your heart will pump about 212 million liters in its lifetime.
26
If your DNA was stretched out it would reach to the moon 6,000 times.
256
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193