far-infrared and steam raise heart rate and stroke volume, mimicking cardiovascular effort
Increased cardiac output (heart rate and stroke volume)
What this means for you
Provides cardiovascular conditioning similar to exercise
The published research
Systemic cardiovascular and carotid baroreflex support of arterial pressure during recovery from passive heat stress in young and older adults.
Physiological reports · 2025
The study directly documents that whole-body passive heating increased cardiac output by ~1.5-1.6 L/min in both young and older adults, supported by significant heart rate increases (+38 bpm young, +27 bpm older). While stroke volume decreased in young adults during heating, the response of increased cardiac output driven by elevated heart rate during heat stress is explicitly quantified and confi
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.