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  • we explain the science of skin color what causes human skin tones to vary among different populations of people?

  • Well, a chemical called melanin has produced in our bodies gives the skin a darker color.

  • The more people produce, the darker.

  • Their skin will be Melanie's purposes to work as a natural sunscreen to absorb the sun's UV rays.

  • With that in mind, regional skin colors developed naturally as a response to different climates.

  • When our ancestors migrated across the globe.

  • Tropical climates provided MAWR UV exposure than other regions.

  • However, too much exposure is damaging.

  • This means natives from regions like the equator had darker skin, since their bodies produce more melanin to protect against these harmful rays.

  • On the other hand, too little UV light is also damaging because UV light provides vitamin D, which is essential to build our bones.

  • Therefore, natives from cooler regions north and south of the equator often had lighter skin as a result of less UV exposure.

  • Since they produced less melanin toe block UV rays.

  • This ensured they received the vitamin D they needed.

  • It's important to note that diet also plays a role in the development of skin tones for example, a high seafood diet provides an alternate source of vitamin D.

  • That's why native people from Alaska and Canada remained dark skinned in low UV areas.

  • All in all, the variation in our skin tones is on Lee due to a little natural sunscreen, Though we may not look alike.

  • We are all human, and together we share our world.

we explain the science of skin color what causes human skin tones to vary among different populations of people?

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B1 skin melanin darker vitamin exposure uv light

The Science of Skin Color

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    林宜悉 posted on 2021/02/12
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