How life evolved is one of the central questions in science and has fascinated humans for centuries. Early Earth was undoubtedly a harsh environment, but we know surprisingly little about the ...

These cells are then exposed to 8-methoxypsoralen (8-MOP)—a biologically inert substance that does not interact with human tissue but reacts with UVA light and leads to apoptosis of the cells ...

The stiffening effect is concentrated in the anterior 200–300 µm of the cornea due to the high absorption of UV light in this area. Riboflavin 0.01% limits the depth of UV penetration to ...

Keep scrolling to discover the effects of UV light on the skin and nails, plus, how to protect yourself the next time you head to the salon. "The light boxes at nail salons used to set nail polish ...

A sun rash is an immune system reaction to sunlight exposure that causes itchy bumps, raised patches, or blisters on your skin. Here’s why and how to find relief.

Another is to grow cells in single-use reactors, which is wasteful. Ultraviolet (UV) light is another. Yet until recently, generating enough UV-C light, which is required for decontamination ...