How to properly protect your skin in winter and summer

Berber nomad in Morocco. All skin is maximally protected from the scorching sun. Nevertheless, such peoples, as a rule, look older than their years when compared with the inhabitants of cities.

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There are also different types of UV rays, based on how much energy they have. Higher-energy UV rays are a form of ionizing radiation. This means they have enough energy to remove an electron from (ionize) an atom or molecule. Ionizing radiation can damage the DNA (genes) in cells, which in turn may lead to cancer.

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