heat exposure shifts autonomic nervous system balance for hours after a session
Dry-sauna exposure produced a significant increase in the sympathetic-parasympathetic balance ratio (LF/HF) of the heart rate spectrum (P=0.0483), observed immediately after the sauna bath and 3 hours thereafter.
What this means for you
Your autonomic nervous system controls how your body responds to stress and recovery. Heat exposure appears to tip that balance in a measurable way — and the effect lingers for at least 3 hours. Many people associate this kind of shift with feeling more alert, centered, or resilient after a sauna session.
The published research
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.