This real-world study shows that recent and habitual light exposure are linked to lower subjective sleepiness and faster ...

But for all its usefulness, researchers are increasingly realizing that light has a dark side. In 2019, one group of ...

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 ...

Blue light has acquired a dubious reputation in recent years, frequently blamed for everything from disrupted sleep patterns to digital eye strain. This high-energy light, emitted abundantly by our ...

A massive new study reveals that your choice of curtains or nightlights could be silently sabotaging your cardiovascular ...

A new study published in the journal Neurobiology of Sleep and Circadian Rhythms provides evidence that exposure to blue ...

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

(CNN) — Turning off the lights at night has long been known to support restful sleep, but new research suggests it may have another significant benefit. Sleeping in total darkness may lower the risk ...

Bright outdoor light exposure at night is associated with an increased risk of heart disease, according to an October study published in the Journal of the American Medical Association. Light at night ...

Good sleep hygiene calls for, among other things, a cool, dark and relaxing environment. It turns out the dark part is key to helping prevent heart disease. People who are exposed to more artificial ...

Light could suppress the sleep hormone melatonin. Sleeping with a cellphone, bright alarm clock on or a television next to your bed puts women at risk for weight gain, a new study found. Women who ...