Unverified50% confidenceFactExact time
When the autonomic nervous system is parasympathetically dominant, HRV tends to be higher, indicating the body is in a recovery state; when sympathetically dominant, HRV tends to be lower, often corresponding to fatigue or a stress response.
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50%
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Long-term
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9/19/2026
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VerifiedHigher heart rate variability (HRV) generally indicates a greater capacity for flexible regulation of the autonomic nervous system.77% similarUnverifiedEffective relaxation exercises typically activate the parasympathetic nervous system, resulting in a decrease in heart rate and an increase in HRV.75% similar
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