Latest / What's the Root Cause? by Dr Vikki Petersen
Heart Rate Variability, your Heart and Mood
Heart rate variability (HRV) is a measure of your body's adaptive capacity and resilience to challenge or stress. Specifically it is a sign of resilience of your autonomic nervous system - the part of your nervous system counterbalanced by the sympathetic, fight or flight nervous system. While the sympathetic nervous system gets you going, the parasympathetic is the rest, digest and relax part of your nervous system.
It is your vagus nerve, as part of your parasympathetic nervous system which slows your heartbeat and elongates the time between beat of your heart. The sympathetic nervous…
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