passive heat stress raises heart rate and whole-body oxygen consumption
Heart rate is the most important determinant of myocardial oxygen consumption alongside force of contraction, and increased heart rate during passive heat stress likely accounts for a substantial portion of the elevated whole-body oxygen consumption observed.
What this means for you
When your heart beats faster in response to heat — without any physical effort — your body is doing real cardiovascular work. This kind of passive cardiac loading may support heart function and metabolic activity in a way that feels effortless, making it especially relevant for people who struggle with traditional exercise.
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.