LED Lights Lack Wavelengths the Body Needs

While needed infrared sunlight reaches the retina through the body.

Mar 26, 2026

∙ Paid

Infrared sunlight penetrates the entire body and improves vision by up to 16 percent – without the eyes even needing to be directly exposed to the light. That is what a new British study shows. And the results point to a problem most people never consider: modern LED lights lack precisely the wavelengths the body needs.

Researchers at City St George’s, U…

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