People with blue eyes are more sensitive to pain than others.

People with blue eyes are more sensitive to pain than others

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Blind people can see their dreams as long as they weren’t born blind

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Our eyes are always the same size from birth, but our nose and ears

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In your lifetime you will produce around 10,000 gallons of saliva

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Common dreams are about potted plants, worms and frogs

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It takes more muscles to frown than it does to smile – around 43 grumpy

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The older we get, the less tears we produce