heat exposure raises myocardial workload up to 26% via vasodilation and heart rate response
Myocardial workload (rate pressure product) increased approximately 12% from baseline to 40°C–25% RH and a further 26% between 50°C–25% RH and 50°C–50% RH, driven by thermally mediated peripheral vasodilation, baroreceptor activation, and sympathetic stimulation of heart rate.
What this means for you
When your body heats up, your heart naturally works harder — similar to light cardiovascular exercise. This kind of passive cardiac stimulation may support circulation and cardiovascular conditioning, which most people notice as improved warmth, energy, and endurance over time.
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.