Melanin is often talked about in terms of skin tone, but its role goes far beyond color. This naturally occurring pigment functions as one of the body’s most important defense systems, especially when ...

Doctors use UV light therapy to treat various common skin conditions, such as psoriasis and eczema. They consider it effective and safe, although it may cause short- and long-term side effects, ...

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. Protective measures, ...