Human Body Facts

The retinas inside the eye cover about 650 square mm and contain 137

Human Body Facts

The only part of the body that has no blood supply is the cornea of the

Human Body Facts

People with blue eyes are more sensitive to pain than others

Human Body Facts

Optophobia is the fear of opening one’s eyes

Human Body Facts

Priests in ancient Egyptian temples plucked every hair from their

Human Body Facts

You blink your eyes over 10,000,000 a year

Human Body Facts

Your tongue, eye, and jaw muscles are among the strongest muscles in

Human Body Facts

It takes the human eyes an hour to adapt completely to seeing in the

Human Body Facts

Blue eyes are the most sensitive to light, dark brown the least

Human Body Facts

It’s impossible to sneeze and keep one’s eyes open at the same time

Human Body Facts

While reading a page of print the eyes do not move continually across

Human Body Facts

The farthest you can see with the naked eye is 2. 4 million light years

Human Body Facts

Human eyes are so sensitive that on a clear night when there is no moon,

Human Body Facts

A healthy (non-colorblind) human eye can distinguish between 500 shades

Human Body Facts

Every person, including identical twins, has a unique eye and tongue

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