![]() While blue light is part of the visible light spectrum (e.g., sunlight) and can help us stay alert, the use of modern technologies (e.g., screens and LED lights) is increasing the duration and proximity of our exposure, which is causing many undesirable health effects such as headaches, blurred vision, dry eyes, neck and shoulder pain, and difficulty falling asleep or staying asleep.īlue light throws off our circadian rhythms. The Negative Health Effects of Blue Light More and more studies have been done on the health impact of blue light, and what scientists have found is alarming. It’s caused by the blue light emitted by the screens of desktop monitors, laptop computers, tablets, and smartphones. The eye fatigue that ultimately ensues is called digital eye strain, and it affects 59% of Americans. Between streaming videos, writing emails and online banking, it’s hard to imagine life before smartphones. If you can’t seem to tear yourself away from screens these days and have been suffering from eye strain or headaches from spending prolonged periods of time on all your gadgets, you’re not alone.
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