These are some curiosities of our body that have to do with the skin:

• Sweat is used to refresh the skin in hot weather.
• No two fingerprints are the same.
• The skin contains a pigment, melanin, which gives color to the skin and protects from the sun. Dark skin contains more melanin.
• The skin has a thickness of two millimeters.
• Freckles are due to an unequal production of melanin.
• House dust contains a huge amount of dead skin cells.
• The half moon at the base of the nail is a layer of skin.

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