HRV Shows Stress and Mental Health Connection

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- Whoop logs daily HRV, with the author’s baseline around 25 ms and his husband’s up to 90 ms, and the metric drops during stressful work periods and rises on vacation.
- Julie Vašků of Masaryk University says typical HRV ranges span roughly 18–70 ms, emphasizing that personal trends over time matter more than a single reading.
- HRV is linked in research to higher risk of depression, anxiety, and cardiovascular disease, suggesting it could serve as an early warning signal for mental‑health issues.
Why it matters: Not enough in the article to say why this matters.




