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Infrared sauna, cold plunge tub, and red light panel in a dark recovery room

THE RESEARCH BRIEF

The research behind heat, cold, and light.

Each protocol, examined session by session against the published studies behind it. What the research shows, what it does not, and how to read the difference.

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The Research Brief

Silhouette of a person's neck and shoulder against a deep orange glow

Near-Infrared vs. Far-Infrared: Two Bands, and What a Spec Sheet Leaves Out

Silhouette of a person's neck and shoulder against a deep orange glow
Red Light Therapy

Near-Infrared vs. Far-Infrared: Two Bands, and What a Spec Sheet Leaves Out

Red light panels and infrared saunas both say infrared. They are different bands from different emitters. Three questions sort any listing.

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Red LED bokeh macro of a red light therapy panel, out of focus
Red Light Therapy

660nm vs. 850nm: What the Two Numbers on a Red Light Panel Actually Mean

660nm and 850nm are the two wavelength numbers that matter on a red light panel. What they tell you, and what they don't, about how a panel actually performs.

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A dense array of red-glowing lamps against a dark background
Red Light Therapy

Red Light Therapy: Wavelengths, Timelines, and What the Research Measures

What the wavelengths on the box mean, how irradiance and dose work, why more is not better, and how long the studies actually run before they measure anything.

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