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For more than a decade, technology users have been warned that the blue light from screens is ruining sleep quality.<\/p>\n
However, recent scientific research suggests that this concern is overblown and that the real culprits are related to lifestyle and the content of what we see, rather than the color of the light.<\/p>\n
The alarm started in 2014 with a study where participants who read on iPads produced less melatonin than those who read physical books. But Jamie Zeitzer, a professor at Stanford University, explains that this study was misleading.<\/p>\n
According to him, the science was not wrong, but the conclusions the public drew were incorrect.\u00a0In laboratory conditions, intense blue light affects the biological clock, but in real life, the intensity of light from a phone is too low to have a dramatic effect.<\/p>\n
An analysis of eleven different studies proved that screen light delays sleep by just nine minutes on average. In addition, the amount of blue light we receive from devices during twenty-four hours is less than what we receive from just one minute of standing outside in sunlight.<\/p>\n
Experts point out that the secret of a good sleep does not lie in blue light filters, but in the contrast of light during the day.\u00a0Exposure to bright light in the morning increases alertness and makes the brain less sensitive to light in the evening.<\/p>\n
The real problem in modern life is that we stay in the same lighting all day. Without a clear distinction between the light of day and the darkness of night, the body has a hard time knowing when to sleep.<\/p>\n
Devices like glasses with orange lenses or the “Night Shift” options on phones, may not block enough light to change our biology, but they serve as a psychological signal.<\/p>\n
When the screen changes color, the brain begins to be conditioned that it is time to rest. Journalist Thomas Germain, who conducted a several-week experiment with total isolation from blue light, noticed that the quality of sleep did not undergo drastic changes.<\/p>\n
But the new routine – using candles and turning off the lights – helped create a more stable sleep ritual. Scientists advise that instead of investing in expensive glasses, people should go outside during the day and reduce the total lighting of the home in the evening.<\/p>\n
After all, what keeps us awake is the stimulating content on the phone, such as social networks and news, and not the blue light emitted by those devices. \/tesheshi.com\/<\/p>\n
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