What is Sun Tan ?

The sun’s rays contain UVA and UVB rays ( ultraviolet rays).

The UVB rays cause sunburns as they burn the epidermis or outer layer of the skin.


https://youtu.be/BmAbpXnT2oQ

The UVA rays penetrate in the skin, where they trigger the melanocyte cells that produce melanin, which is ‘tan’.

Darker people tan more because they produce more melanin.

See also  Indian Parenting Tips