Random Human Body Facts

If your DNA was stretched out it would reach to the moon 6,000 times.

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

The average sperm cell swims at 8 inches per hour.

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

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

Yawns are more contagious among people with closer relationships.

Enamel is hardest substance in the human body.