Medically reviewed by Mary Choy, PharmD Sun sensitivity, or photosensitivity, occurs when the skin reacts to sunlight or ultraviolet (UV) rays from sources like tanning beds. Some medications or ...

Whether you enjoy golfing, boating, gardening, relaxing at the beach or simply spending time outdoors, protecting yourself ...

The UV Index is a scale that helps illustrate how strong the sun's radiation is. (WDBJ Weather) The index uses a scale from 0 (low risk) to 11+ (very high risk).

When blasted with ultraviolet radiation, a newly discovered species of tardigrade protects itself by glowing blue. Tardigrades, microscopic animals also known as water bears or moss piglets, are ...

Ultraviolet (UV) rays from sunlight can cause DNA damage that leads to skin aging and cancer. Fortunately, our bodies have a ...

A new study led by astronomer Tyler Richey-Yowell (via arXiv.org) used data from the Hubble Space Telescope to look at 39 examples of orange dwarfs, also called K stars.This study's researchers ...

UV radiation damages skin cells. Sunburns are an immune system response, not a "mindset," as the post alleges.. When ultraviolet light from the sun makes contact with skin, it can induce the ...

UV rays are emitted from the sun every day, not just in the summer, so everyone should wear sunscreen every day, for any kind of weather. The higher the SPF, the better.

The UV index measures the intensity of skin-damaging ultraviolet radiation at the Earth's surface. The UV index ranges from 0 to 11-plus, with higher values indicating greater risk of sunburn and ...

The UV index measures the strength of the sun's ultraviolet (UV) radiation. The index ranges from 0 to 11, with higher numbers indicating greater risk of sunburn and skin damage.

Ultraviolet rays from the sun can age your skin, or worse, if you are not careful. Credit...Justin J Wee for The New York Times Supported by By Melinda Wenner Moyer Q: Is getting a tan just as bad ...