hrv

Published research on hrv.

SleepOct 12, 2026

Poor Sleep Linked to Lower Heart Rate Variability After Heart Surgery

Heart surgery patients who slept poorly around their operation had lower heart rate variability before surgery and on each of the next 3 days, according to a 2026 study of 95 adults in China…

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AnxietyFeb 10, 2024

Heart Rate Variability (HRV) Reduced in Anxiety Disorders (2024 Study)

In the quest to understand anxiety disorders more profoundly, scientists have turned to the rhythms of the heart, specifically heart rate variability (HRV), for answers. By employing wearabl…

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