hyperthermia raises cardiac output by 60–70% through increased heart rate
Sauna bathing increases cardiac output by 60–70% (from 5–6 L/min up to 9–10 L/min), driven primarily by increased heart rate, while cardiac stroke volume remains unchanged.
What this means for you
A significant boost in cardiac output means your heart is pumping far more blood per minute — delivering oxygen and nutrients to muscles, skin, and organs at a much higher rate. Most people experience this as a warm, flushed feeling and a sense of circulation 'waking up.' Over time, regularly challenging your cardiovascular system this way is associated with improved heart efficiency and endurance.
The published research
Benefits and Risks of Sauna Bathing
· 2001
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.