far-infrared selectively activates warmth receptors while quieting cold receptors
Stimulation of warmth receptors while inhibiting cold receptors
What this means for you
This receptor response is why far-infrared warmth feels deeply comfortable rather than harsh or surface-level. Your nervous system reads it as a natural, soothing heat signal — the kind that helps muscles relax, tension ease, and the body shift into a calmer, more restorative state.
The published research
Thermal illusions for thermal displays: a review
Frontiers in Human Neuroscience · 2023
The review explicitly documents the physiology of warm and cold receptors firing reciprocally: 'when the skin is heated, the warm receptors fire vigorously, and the cold receptors cease the spontaneous firing.' This directly matches the response of stimulating warmth receptors while inhibiting cold receptors, with the review citing Hensel's electrophysiological recordings as established findings.
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.