UV rays are classified according to wavelength: UVA (longest wavelength), UVB (medium wavelength), and UVC (shortest wavelength). Here are some important facts about ultraviolet A (UVA ...

In addition to sunlight, ultraviolet rays are also given off by several different forms ... then the cumulative exposure to UVB and UVA could be a problem. If you have a history of lupus flares when ...

New research suggests moderate sun exposure offers health benefits, challenging traditional protection guidelines and changing public perception.

Medically reviewed by William Truswell, MD There is no evidence that using sunscreen in a tanning bed will prevent the damage ...

When we lay in the sun, our skin absorbs two types of UV light. UVA and UVB rays. UVB light is higher energy and can cause sunburns while UVA penetrates deeper under the skin and can damage skin ...

Ultraviolet rays can increase the risk of cataracts and ... metals coating ordinary lenses and doesn't automatically convey UVA/UVB protection. Blue blocking. Describes amber-colored lenses ...

An curved arrow pointing right. Summer is the perfect time for road trips, but just because you are inside your car doesn't mean you are completely protected from the sun's rays. You may not get ...

Both ultraviolet A (UVA) and ultraviolet B (UVB) light have documented efficacy for treating MF (Abe, Ohnishi, Kan, & Ishikawa, 2003; Herrmann et al., 1995; Querfeld et al., 2005) and response is ...