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.

July is UV Safety Awareness Month, highlighting the growing risks of UV radiation and encouraging the use of protective measures to reduce sun-related health threats.

The CDC and FDA recommend using a combination of shade, protective clothing, sunglasses, and broad-spectrum sunscreen with ...

Although the sun emits much larger amounts of UV radiation than indoor light, most people—especially those with lupus—tend to spend more time indoors, where they’re exposed for longer periods of time.

According to Skin Cancer Foundation, window glass blocks most UVB rays but allows at least 50% of UVA rays to pass through.

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.

The sun is a full-spectrum light source, which means all light frequencies are present, including those humans can’t see. Higher frequencies, which are those above the visible spectrum, make up ...

UV rays are also high-energy, so while we can’t see them, we certainly feel their effects. For instance, ultraviolet light generated by the sun is what gives you a tan — or a sunburn.

UV light is naturally emitted by the sun, and most forms are harmful to living beings—as well as microorganisms, like viruses. This light can get absorbed by the genome of an organism, tie knots in it ...

Skin damage caused by ultraviolet (UV) radiation continues long after you get out of the sun, even in the dark, a new study says. Researchers explain that UV light from the sun or tanning beds can ...

Because light that's visible to the human eye falls into the 400- to 750-nanometer range (the spectrum used in normal photography), photos using UV light (covering the range from roughly 1 to 400 ...