About ANS Performance

To achieve the ultimate "totonoi" in the sauna, it is important to significantly activate your autonomic nervous system while simultaneously attaining deep relaxation.

"ANS Performance" relatively displays the intensity of autonomic nervous system activity required to experience "totonoi" (autonomic nervous system activity during rest) compared to your own average during your sauna sessions for that day. It is an index for tracking your own changes, not for comparing with others.

However, a high value is not necessarily better;rather, the important thing is that it has not decreased.

If excessive strain is placed on your body in the sauna room, autonomic nervous system activity—which should normally be active—decreases, leading to a state of being "hot-headed" or "lightheaded" (nobose).
In this state, the risk of fainting, falling, or other accidents increases, making it highly dangerous.

Conversely, if the strain is too light, the autonomic nervous system will not be significantly activated.
In this state, it becomes difficult to experience the sensation of "totonoi" or the refreshing effects of the sauna.

The important thing is to maintain your ANS Performance state during each Set and avoid letting it drop extremely low.

Pushing yourself safely and appropriately maximizes the benefits of the sauna, such as feeling refreshed and improving the quality of your sleep.

This is the key to achieving the ultimate "totonoi."

How to Read the ANS Performance Graph Please refer to this to aim for the ultimate "totonoi" sauna experience.

However, even if it feels great, don't get greedy!
Let's enjoy the sauna safely and moderately!

❓ What is the Autonomic Nervous System?

These are the nerves that automatically regulate bodily functions that you cannot consciously control, such as heart rate, breathing, and body temperature regulation.
Especially in a sauna, as body temperature rises, the sympathetic nervous system becomes active, working to release heat by improving blood circulation and promoting sweating. During rest, the parasympathetic nervous system takes over, creating a state of relaxation.