HeartMath Institute
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Salivary IgA, heart rate and mood were measured in thirty individuals before and after experiencing care or anger. Two methods of inducing the emotional states were compared: self-induction and external induction via video tapes. Anger produced a significant increase in total mood disturbance and he...

Introduction This study utilizes HRV analysis to examine a new method of intentionally shifting emotional states, and demonstrates that positive emotions lead to alterations in sympathovagal balance that may be beneficial in the treatment of hypertension. Anger, on the other hand, was shown to signi...

This work utilizes the measurement of heart rate variability (HRV) as a vehicle to show that continued practice of certain specific techniques involving an intentional shift of focus to the area of the heart, and invoking specific feeling states such as love and appreciation, automatically manifests...

We have recently defined two new physiological states in terms of their unique electrophysiological characteristics (1). These states are generated using specially designed mental and emotional self-management techniques which involve intentionally quieting the mind, shifting one’s awareness t...