The average man has an erection every hour or so whilst asleep.

The average man has an erection every hour or so whilst asleep

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

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Eye transplants are currently impossible due to the sensitivity of the

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The scrotum – which holds sperm – sits outside a man’s body. This is

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There are about 39 million people that are blind around the world

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Doctors have yet to find a way to transplant an eyeball. The optic nerve