Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
If you hold farts in during the day, they'll just come out when you sleep.
16
Your body is creating and killing about 2.4 million red blood cells per second.
17
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
You see your nose at all times, your brain just chooses to ignore it.
30
The human brain doesn't stop developing until about 25 years old.
102