Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The human brain uses approximately as much energy as a 10 watt light bulb.
120