DEVICES AND METHODS FOR A NON-INVASIVE HAND-TO-HAND ELECTROCARDIOGRAM TEST DURING PACED BREATHING TO MEASURE, ANALYZE AND MONITOR VAGUS NERVE ORIGINATED CARDIAC- AND RESPIRATORY EFFECTS WHICH CAN BE USED FOR HEALTH MONITORING, MEDICAL DIAGNOSTICS AND PERSONALIZATION OF HEALTH CARE

摘要

A wrist or finger mounted wearable device and method for determining a state or activity level of the autonomic nervous system, such as the respiratory rate or activity of the vagus nerve. The wearable device having at least a pair of electrocardiograms (ECG) measurement electrode pads configured to perform hand-to-hand ECG measurements. The device or method including monitoring of the pair of ECG measurement pads at a first time period to arrive at a first reading of hand-to-hand ECG, and at a second time period to arrive at a second reading of hand-to-hand ECG. The device or method analyzing the first and second readings of ECG to arrive at various indications of the state of a user.