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
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Held in farts enter your bloodstream and are bad for your body.
26
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17