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  • Why do we get sunburn?

  • Because sun is jealous of my skin.

  • No.

  • Sunburn is a term for red and inflamed skin.

  • It is caused by ultraviolet radiation present in sunlight.

  • Sunlight consists of three types of ultraviolet radiation, UVA, UVB and UVC.

  • Does it contain UVZ as well?

  • Just listen.

  • Our skin is made up of cells.

  • These cells have DNA.

  • When we are in the hot sun for very long.

  • The UVB radiation enters into our skin cells and starts to damage the DNA.

  • DNA damage can lead to cancer.

  • Thus, to reduce the risk of cancer, the damaged skin cells kill themselves.

  • This programmed cell death is called apoptosis.

  • Apoptosis activates the immune response.

  • As a result, the blood flow increases to that area to heal the skin.

  • This leads to red and inflamed skin which we call as sunburn.

Why do we get sunburn?

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