The heart rate responds directly to changing emotions. Emotions have varying effects on autonomic nerve function. For example, a fear response can cause the heart to “stop.” A stress response can cause palpitations and hyperventilation. On the other hand, relaxation and a feeling of happiness can cause the opposite reaction: the heart rate slows down, and the body and mind relax.
Relaxation and a feeling of happiness are measurable by measuring the HRV. The higher the HRV, the greater the degree of heart coherence. So, happiness is measurable with HeartMath Institute’s measuring devices.
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