The Harmful Effects of Sunlight sarah

The Harmful Effects of Sunlight

 

Ozone layer depletion reduces our atmosphere’s natural protection from the sun’s harmful ultraviolet radiation. That depletion will lead to increase the ultraviolet (UV) radiation that you can’t see or feel.

It affects human health both positively and negatively. The (UV) radiation has many effects to the human health both positively and negatively. Especially for people who spend unprotected time outside home .in this summary I will explain the effects that could happen because of these radiation .Such as , Skin cancer ,Cataracts ,Suppression of the immune system and Premature aging of the skin.

First of all, skin cancer is unnatural growth of skin cells .that leads to form malignant tumors. All that happened because of the ultraviolet radiation that person exposed himself. According to, American cancer society, More than 3.5 million cases of basal and squamous cell skin cancer is diagnosed in USA each year. Melanoma, the most serious type of skin cancer, will account for more than 76,000 cases of skin cancer in 2014. They notes skin cancer is the most common of all cancer. Exposure to UV radiation is the most important environmental factor in the development of skin cancer. The skin cancer is a dangerous disease that could lead the Infected to die. Second effect, Cataracts or eyes damage, the sun is the only source of UV radiation which could damage our eye tissues if we exposed to the sun for a long time without any protection. Also sun radiation cause Suppression of the immune system  the Scientists believe sunburns can affect in alter the distribution and function of disease fighting white blood cells in humans for up to 24 hours after exposure to the sun. As a result, Repeated to much to UV radiation can cause more damage to the body's system. Finally, premature aging of the skin is the easier disease could happen to a lot of people. Staying overexposure to the sun changes the texture and weakens the properties of the skin. Actually, Premature aging of the skin is cumulative of gain the skin cancer that means you have to be more careful and start a sun protection program.

 

http://ehs.okstate.edu/modules/sun/effects.htm