Random Human Body Facts

The adult human brain weighs about 3 pounds (1,300-1,400 g).

It takes twice as long to lose new muscle if you stop working out than it did to gain it.

All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).

Our eyes are always the same size from birth, but our nose and ears never stop growing.

Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!

It takes about 20 seconds for a red blood cell to circle the whole body.

If you are cold you are more likely to be hungry because you use energy to keep warm.