What is the effect of UV radiations on human beings ?

1.	What is the effect of UV radiations on human beings ?
Answer» Ans :- Damages immune system – Over-exposuretoUV radiationhas a harmful suppressing effecton the immune system. Scientists believe that sunburn can change the distribution and function of disease-fighting white blood cells inhumansfor up to 24 hours afterexposureto the sun. Overexposure toUV raysalso causes premature aging effects, like: skin wrinkling and hardening (leathery skin) blotchiness loss of elasticity dark patches ("age spots" or "liver spots") precancerous skin changes (calledactinic keratoses)

Answer»

Ans :- Damages immune system – Over-exposuretoUV radiationhas a harmful suppressing effecton the immune system. Scientists believe that sunburn can change the distribution and function of disease-fighting white blood cells inhumansfor up to 24 hours afterexposureto the sun.

Overexposure toUV raysalso causes premature aging effects, like:

skin wrinkling and hardening (leathery skin)

blotchiness

loss of elasticity

dark patches ("age spots" or "liver spots")

precancerous skin changes (calledactinic keratoses)

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