Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. >> A large band gap means higher-energy photons, which in ...

For a decade, we've been told our screens are wrecking our sleep. The real culprit is far bigger than the glow from your ...

Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...

When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with your body's internal systems. Yet here's something lighting manufacturers ...

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 ...

It’s one of the most pervasive messages about technology and sleep. We’re told bright, blue light from screens prevents us falling asleep easily. We’re told to avoid scrolling on our phones before ...

A growing body of research suggests screens aren’t the main sleep disruptor. Instead, what you do during the day could matter ...

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 ...

Sleep scientists are changing how they think about screen use at night. By Caroline Hopkins Legaspi Experts have long warned about the dangers of blue light before bed. When exposed via smartphones, ...

To many people in the modern digital era, it is a habit to go through their phone before sleep. However, does your phone have blue light that is ruining your sleep? Studies have shown that exposure to ...

LA Times Studios may earn commission from purchases made through our links. This guide explores how blue light glasses can help with eye strain and sleep issues caused by digital screens. Wake up.