Blue light from screens has been blamed for sleep problems, screen fatigue, and various health issues. Companies sell blue light blocking glasses, apps filter blue wavelengths, and phone operating ...

You’ve likely heard that blue light from smartphone screens may be keeping you awake at night. While the sun is our main source of blue light, the rise of LEDs and screen use exposes us to artificial ...

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 ...

When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...

During the COVID-19 pandemic, many people were stuck at home and spent increasing time staring at their screens. As a result, the majority of people’s work, social lives and schooling all revolved ...

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 new study suggests that blue light such as from phone screens may not be as disruptive to sleep as previously thought. The study looked at how people reacted to different types of light. They found ...

For anyone who cares about their so-called "sleep hygiene" — essentially good, deep, restful sleep — it has become conventional wisdom that blue light will wreck it. Blue light is often the wavelength ...

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Seasonal affective disorder (SAD) is more than the “winter blues.” It’s a real mood disorder linked to reduced light exposure ...