Our Editorial & Sourcing Policy

Tansira publishes information about blood pressure, and blood pressure is health information people make real decisions on. We take that seriously. This page explains exactly how our content is made, what it is based on, and what we will never do.

Who writes this

Our articles are researched and written by Fuat, the founder of Tansira, a software developer (not a medical professional). Every article carries a real, named byline and a last-updated date. We do not publish anonymous content, and we do not pretend to be doctors.

Our sourcing standard

We do not write health claims from memory or opinion. Every clinical statement is based on, and linked to, a primary source: a published clinical guideline or a major health authority. The sources we rely on include:

• American Heart Association / American College of Cardiology - AHA/ACC 2025 High Blood Pressure Guideline (our default classification standard)
• European Society of Cardiology / European Society of Hypertension - ESC/ESH 2018 framework (our European classification standard)
• World Health Organization / International Society of Hypertension - WHO/ISH 1999 classification table (our international classification standard)
• Japanese Society of Hypertension - JSH 2025 (thresholds unchanged from JSH 2019)
• Mayo Clinic, Cleveland Clinic, and Harvard Health
• U.S. Centers for Disease Control and Prevention (CDC)
• UK National Health Service (NHS) and NICE

If we cannot tie a claim to a source like these, we do not publish it.

Why we show more than one guideline

The same reading can be labelled differently depending on which country's guideline you use. Hypertension begins at 130/80 mmHg under the U.S. (AHA/ACC) standard but at 140/90 mmHg under the European (ESC/ESH) and Japanese (JSH) standards, so the same numbers can land in different categories. We explain these differences rather than hiding them, and the Tansira app lets you switch between guidelines so you can see your reading the way your own doctor would.

Which guideline versions we use, and why

Tansira classifies your readings against the complete category table of each standard. Where an organization's newest document drops the classification chart, or introduces a system we have not finished building, we deliberately use the version that gives a complete, reviewed set of categories:

• AHA/ACC 2025 - the current U.S. guideline, and Tansira's default.
• WHO/ISH 1999 - we use the 1999 ISH classification table because the World Health Organization's 2021 update defines treatment thresholds only and contains no classification chart. The 1999 table remains the most complete international category system.
• ESC/ESH 2018 - we use the 2018 European framework. The 2024 ESC guideline introduced a new three-category system that we have not yet implemented; we would rather classify against a complete, tested table than show a partial version.
• JSH 2025 - the current Japanese standard (thresholds unchanged from JSH 2019).

When a guideline we use is superseded and we implement the newer version, we update both the app and these articles.

What we will never do

• We never name specific medications or doses.
• We never tell you to start, stop, change, or skip any medication. Those decisions belong to you and your prescriber.
• We never diagnose you or claim to.
• We never claim to cure high blood pressure.
• We are honest that no app, phone, or smartwatch can measure your blood pressure. That needs a clinically validated cuff. Tansira helps you record, understand, and track readings; it does not take them.

Keeping articles current

Guidelines change, so our content does too. Every article shows when it was last updated, and we review guideline-dependent articles whenever a new guideline is published, and at least once a year regardless.

Articles may be drafted with the help of AI tools, then researched, fact-checked against the primary sources, and edited by a human before publishing. Every article is fact-checked against its primary sources by a human before it goes live.

Corrections

We would rather be corrected than be wrong. If you find an error, email [email protected]. We fix mistakes quickly and note any material change in the article's update date.