Here’s why you should catch some rays this summer - Sun exposure has benefits to health ... but slather on the sunscreen to ...

UV rays can wreak havoc on your skin! Learn from an expert how different skin types are affected, from tanning to ...

Many people worry that spending too much time in the hot summer sun could have serious consequences. And it’s true that ...

The UV Index provides a measure of the sun's ultraviolet radiation, a short wavelength of light invisible to humans, that can cause sunburns. Sunburns are a factor that can lead to deadly health ...

Ultraviolet (UV) radiation from the sun reaches the earth in 2 main forms - UVA and UVB rays. Although both cause skin ...

Effect of the Sun's Rays on the Brain and General System. Share full article. July 27, 1859. Credit... The New York Times Archives. See the article in its original context from July 27, 1859, Page ...

UV radiation comes primarily from the sun and is made up of UVA, UVB, and UVC rays. UVC rays do not reach Earth, but both UVA and UVB rays pose health risks. Learn more here.

The sun's rays can burn the retina – leading to blindness. Experts say your retina cannot sense pain, so, the effects of the damage would be felt several hours later.

When exposed to direct sunlight, UVA and some UVB rays can penetrate the dermis and, with enough exposure, break down stores of naturally occurring hyaluronic acid, explains Dr. Jessie Cheung, MD ...

Usually, the effects of UVB rays are delayed or appear a few hours after sun exposure. Most tanning beds use a combination of UVA and UVB rays. Special UVB-only tanning beds may be touted as safe ...

To get through the hottest days of summer, here's how to read the UV index so you know when the sun is most dangerous.