The full range of blue light, which is present in digital devices, is 400-500. That means some wavelengths are generally \u201cgood,\u201d while others will stand in the way of melatonin production. Perhaps you have noticed that, if you work on the computer too late at night, you cannot sleep until well past midnight. That\u2019s the workings of shorter wavelengths of blue light. Children are also susceptible to the hazards of blue light from electronic devices, increasing the risk of poor academic performance and behavioral issues stemming from a lack of sleep.<\/p>\n

Blue light is still under heavy investigation by researchers. During the daytime hours, higher wavelengths of 460-500 are beneficial, but not after a certain time. Ultimately, \u201cgood blue light\u201d seems to be more a matter of timing that wavelength.<\/p>\n