Apps promising to swiftly ease jet lag have proliferated. We traveled to the other side of the globe and back to see if they ...

I was on day two of a 10-day trip through South Australia. Back home in San Francisco, it was 2 a.m., but here in ...

To help you find the best pair of blue light glasses, we consulted three optometrists to learn more about what to look for.

Think blue light is hurting your sleep cycle? A new study suggests it can actually improve the overall sleep quality of older adults — but only if they time it right.

Members of the Cornell University Police Department and the Cornell community urged improvements to Cornell’s Blue Light Escort service — a program that allows students to request chaperones ...

Blue light is part of the visible light spectrum and accounts for about one-third of all light we see as humans. This type of light influences alertness, hormone production and sleep cycles.