Editorial policy

What we publish

We write for people who want to understand heart rate variability, whether they wear a tracker or not. We explain what the research shows, say where it is uncertain, and avoid claims that HRV can diagnose or predict disease.

Sources

Health statements are based on peer-reviewed research, clinical guidelines and reputable institutions. Each article lists its sources, and the build that publishes the site refuses any health page without at least one. Where studies disagree or the evidence is thin, we say so.

How a page is written and reviewed

1. We choose topics from the questions people ask about HRV and plan each page around a clear answer.
2. A draft is written. Drafts may be prepared with the help of AI writing tools. Every claim in a draft is checked against its cited source by our editors.
3. A named medical or scientific reviewer checks the page before it is published. The reviewer's name and the review date appear on the page. Until a page has been reviewed, it is not published.
4. We re-check pages when new evidence appears and update the review date when we do.

Corrections

If you find a mistake, email hello@hrv.expert with the page and what is wrong. We check every report, correct errors promptly and update the page's date.

Our link with CardioMood

hrv.expert is run by CardioMood SA, which makes HRV tracking products. Editorial content is written to the same standard whatever device you use, and every mention of CardioMood is labelled.

• Articles do not recommend CardioMood products. Cards about CardioMood are labelled and shown after the article.
• Devices from every maker, including CardioMood, are described using the same criteria and sources.
• We do not accept payment from device makers and do not run advertising.