Learn how to add atmospheric light rays to forest scenes in Affinity Photo with our editing pro James Paterson ...

Sometimes the cells with DNA mutated by the sun's rays turn into problem ... since the ionizing effects of UV radiation can kill most bacteria. Black-light tubes typically use mercury vapor ...

The sun's rays make us feel good, and in the short term, make us look good. But our love affair isn't a two-way street. Exposure to sun causes most of the wrinkles and age spots on our faces.

Blue light usually comes from the sun but also from digital screens ... Health experts have warned against the harmful effects of UV rays, which can damage your skin and your eyes.

The light-induced effects of serotonin are triggered by ... of sun exposure depends on your skin type and how direct the sun’s rays are. People with fair skin typically get a sunburn more ...