Do blue light filters reduce eye strain and provide screen protection? Experts reveal mixed evidence on glasses, apps, and ...

Blue light is part of the visible light spectrum. Exposure to blue light can affect sleep quality, alertness, hormone production, mood, and more. Blue light could also contribute to headaches, but ...

Blue light is a high-energy light that the eyes absorb from computers, smartphones, LED lights, and fluorescent lights. The sun is the biggest source of blue light. On a sunny day, it's 100,000 times ...

Artificial light has extended our days, but it is also quietly reshaping how our brains and hearts function at night. A ...

Though the merits of blue-light-blocking glasses are still being debated, wearing a pair may be beneficial for your eye health if you spend a lot of time in front of a computer monitor or other ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? At the simplest level, different colors of light have different wavelengths.

As SELF has previously reported, visible light occupies wavelengths between about 380 and 700 nanometers (nm)—blue light falls between 400 and 500 nm on that spectrum. Effective blue light eyeglasses ...

Chelsea Reynolds is affiliated with Flinders University with academic status, is a member of the Australasian Sleep Association, and is a co-founder of the digital CBTi program, Bedtime Window. It’s ...

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. NY Post Composite Blue light ...

During the workday, you know how common it is to lose track of time. One minute, you’re starting your day by brewing a cup of coffee and checking emails, then seemingly in the blink of an eye, it’s ...

It may not be great on the eyes, but it could be a new way to take care of those pit stains. By Andrew Paul Published Sep 3, 2025 10:00 AM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...