The blue light from your phone isn't ruining your sleep
By Thomas Germain
Published on April 8, 2026.
The article discusses the controversy surrounding blue light, which has been blamed for disrupting sleep. However, experts suggest that it is not the main culprit, but the lighting of modern life can significantly impact your sleep. Modern screens use blue LEDs, which mix together and trick your brain into seeing white, but extra blue always leaks out. Jamie Zeitzer, a professor of psychiatry and behavioural sciences at Stanford University, says that the science was deceptive and brought people to bad conclusions. Despite warnings and attempts to reduce blue light on phones and lightbulbs, scientists say the amount of blue light emitted from these devices is not significant. The article also discusses the impact of a light-sensitive protein in your eyes on your sleep, which reacts to other colours of light.
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