There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
There's 100 trillion good bacteria living in your body.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17