Why the study?
Heart rate variability reflects autonomic nervous system function and indicates physical and mental status, but the role and progress of wearable devices for monitoring it warrant review.
Wearable devices represent a promising tool for tracking heart rate variability to improve personal health monitoring and disease diagnosis.
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Warrants caution before clinical adoption; leaves open need for prospective validation of wearable HRV tracking.
Li et al. (2023) studied this question.
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