Measuring the impact of sound healing on nervous system, heart rate variability and heart rate

The visual below demonstrates how the human physiology (as measured by Heart Rate Variability-HRV) before, during and after a sound healing session of singing bowls. The heart rate (shown using the red dotted line) begins to decrease when the singing bowls session started and continues to decrease and remains low (76) even after the session is completed.  Heart Rate Variability (SDNN-see description below) increases during the sound session and remains very high even after the session has been completed. At the end of the sound session, the HRV remains high and heart rate declines and the parasympathetic nervous system remains more activated (a clear indication of deep relaxation that usually leads to restoration of balance in various systems of the body).

Why this condition is necessary for healing? What process facilitates such deep relaxation? How to measure this? What’s the significance of high HRV?  – you can learn this during Naad Yoga workshops.

Gunjan Y Trivedi

Legend: SDNN (Standard Deviation of NN Interval) shows the standard deviation of beat to beat variations in the heart rate (higher number indicating more variability), HF Power nu (High Frequency Power, normalised unit) indicates the extent of parasympathetic activation and HR shows “heart rate”.

PS: This measurement was conducted during a one-to-one session (with help of Jainish Patel) and client had agreed to hook up to the HRV device (Emwave Pro). Data was analyzed using Kubios HRV Premium software.