Our eyes close automatically to protect us from perceived dangers.

Our eyes close automatically to protect us from perceived dangers

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Human Body Facts

When you blink, it lasts for about one tenth of a second

Human Body Facts

Astigmatism refers to a curvature of the cornea or lens and toric lenses

Human Body Facts

You actually have two pairs of nostrils! The other pair is at the back

Human Body Facts

It takes about one minute for a single red blood cell to travel around

Human Body Facts

Your fingernails grow quickest on the hand that you write with

Human Body Facts

The colder the room you are sleeping in, the higher your chance of