The human brain doesn't stop developing until about 25 years old.
102
The human sigh acts as a physiological reset button.
23
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
If you are cold you are more likely to be hungry because you use energy to keep warm.
144
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
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
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111