You may not always see it, but most iPhones emit a flashing red light from the top of their screens. It's nothing to be ...

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 ...

Many people use their electronic devices, including phones, tablets, and computers, for extended periods. Companies now sell screen protectors that reportedly block blue light and benefit eye health.

You probably know that bright lights and the blue glow of electronics at night can hinder your sleep. Well, it turns out that red light may also affect your sleep, but in a potentially helpful way. In ...