heat exposure shifts breathing deeper and slower, increasing air volume by ~78%
Passive heat exposure caused a 78% increase in minute ventilation at 50°C–50% RH compared to baseline, accompanied by a decrease in breathing rate (22.8%), indicating deeper, more effortful breathing as a hyperthermic response.
What this means for you
When your body heats up, it naturally adjusts by taking fewer but fuller breaths — moving significantly more air with each one. This kind of deeper breathing engages your respiratory muscles more fully and may support better oxygen exchange, which many people associate with a calmer, more grounded feeling during and after a heat session.
The published research
The cardio‐respiratory effects of passive heating and the human thermoneutral zone
Physiological Reports · 2021
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.