It takes about 20 seconds for a red blood cell to circle the whole body.
102
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human body contains over a billion miles of DNA.
147
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
The human brain doesn't stop developing until about 25 years old.
102
All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).
266
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
