Seeing is such a big part of everyday life that it requires about half of the brain to get involved.

Seeing is such a big part of everyday life that it requires about half

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Heterochromia is the medical term for having two different colored eyes

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You actually see with your brain, not your eyes. Our eyes function like

Human Body Facts

Seeing is such a big part of everyday life that it requires about half

Human Body Facts

The pressure created by your heart can squirt blood almost ten metres

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The human eye can see 500 shades of grey

Human Body Facts

Men produce approximately ten million sperm every single day