It is especially effective in increasing both parasympathetic and sympathetic activity.

This would consequently lead to increased motility because parasympathetic activity would be unopposed by diminished sympathetic activity.

Waon therapy increases parasympathetic activity and decreases the sympathetic activity.

Both heart rate variability (the beat to beat variation in heart rate) and baroreflex sensitivity are accepted measures of parasympathetic activity.

Unusually, this tachycardia is mediated by increased sympathetic activity to the sinoatrial node (SAN) with no fall in parasympathetic activity.

Increased parasympathetic activity promotes the secretion of saliva.

It is also thought to be responsible for a decrease in sympathetic and increase in parasympathetic neural activity.

However, many instances of sympathetic and parasympathetic activity cannot be ascribed to "fight" or "rest" situations.

A healthy HRT indicates the presence of a healthy amount of parasympathetic activity, countering sympathetic activity.

Erection subsides when parasympathetic activity reduces to baseline.