When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
A person can live without food for about a month, but only about a week without water.
156
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
The human body contains over a billion miles of DNA.
147