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 ...

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.

Add Yahoo as a preferred source to see more of our stories on Google. Many Americans spend more than seven hours in front of screens daily, which can affect your skin. (Getty Images) (d3sign via Getty ...

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 ...

You may know them by the acronym ROY G BIV. Together, they make the white light you see when the sun -- the main source of blue light-- is shining. Fluorescent and LED (light-emitting diode) light ...

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We asked the experts about how screen time might interfere with sleep. We've sent this story to your inbox. Digital screens emit sleep-disrupting blue light, feed us instant and addictive ...

A new study published in the journal Frontiers in Aging has shown that "excessive" blue light exposure may accelerate cell aging by disrupting the metabolic process. Getty Images Staring at your phone ...