Learn why researchers say artificial light at night might contribute to sleep disruption, metabolic disorders, and even mood ...

Discover how blue light from screens affects your eyes, sleep and health, plus simple strategies to protect your vision in our digital world.

Too much exposure to blue light could lead to insomnia and symptoms of depression. Learn more about how it can affect your mental health.

The sun is the biggest source of blue light. Popular electronics are another source. Learn more about blue light and how it works.

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.

Blue light is a high energy light that can impact your mood, sleep, and eye health.

W hether it’s the 1970s or the early 2000s, mood rings are often associated with a few different time periods. They became ...

Blue light — from the sun, fluorescent lights, or your phone and other screens — sends signals to your brain to wake up. Learn how it can interfere with sleep.

Exposure to blue light can affect sleep quality, alertness, hormone production, mood, and more. Blue light could also contribute to headaches, but other causes may be more likely.

Scientific evidence for the effectiveness of blue light–blocking glasses is mixed, but some people may find them useful.

Tired of the strain on your eyes? A pair of blue light glasses might be just the thing you need. Here’s everything you need to know.

How does blue light impact sleep? Bright light, i.e blue light, interferes with the circadian rhythm by suppressing production of the sleep-inducing hormone melatonin.