Ultraviolet light from the sun causes DNA damage

Even when there is no sunlight, the effects of ultraviolet rays (also known as UV rays) from the sun can cause deadly consequences, US researchers said.

Researchers at the National Medical Center in Duarte, Calif said that UVB rays are more harmful to the skin because the body is less able to restore DNA damage (short for English deoxyribonucleic acid). caused by UVB rays rather than damage caused by UVA rays.

Scientists exposed 3 sets of UVA cells, UVB rays and sunlight were reconstructed. They compared these cells with the cells in the control group that were not exposed to the sun to analyze whether these cells could restore destruction.

(Photo: corbis)

The study - published in the July issue of the Federal Journal of American Societies for Experimental Biology - found that cells can restore damage caused by UVA rays. However, scientists and health experts warn that UVA rays can cause serious damage, potentially leading to skin cancer.

"Sunlight causes skin cancer and ozone depletion to make us more exposed to ultraviolet radiation. This tells us that both UVA and UVB rays in the sun are causing DNA destruction. "