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Archive: November 2025

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Energy & Recovery

The blue light glasses question, examined

Lab findings, RCT results, and where the popular advice goes wrong

The blue light glasses market is large and growing. The premise — that filtering short-wavelength evening light prevents melatonin suppression and protects sleep — is half-supported by the laboratory research and contradicted by the real-world trials. The science is real. The product is mostly not what the science is about.

#sleep #circadian #light #contested #evidence #chronotype

By Mick

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