Beware: Why tech’s favorite color is making us all miserable

The cold blue light of modern touchscreens may be aesthetically pleasing, but it poses health problems. Designers and technologists should take cues from military history and embrace the orange.
Harvard researchers and their colleagues conducted an experiment comparing the effects of 6.5 hours of exposure to blue light, versus exposure to green light of comparable brightness. They found that blue light suppressed melatonin for about twice as long as the green light and shifted circadian rhythms by twice as much (3 hours compared with 1.5 hours). And worse, it’s been linked in recent studies to an increased risk of obesity and some cancers.

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