High Blood Pressure: Your Home Readings Are Research Data

Every figure in this guide comes from a published source, linked where it appears and kept in CureCircle's evidence base with the source's own words. It is not medical advice. Read on 7 November 2026.

High blood pressure is one of the most common long-term conditions there is, and one of the best understood. And yet most people who have it do not have it under control. The gap between what medicine knows and what happens in people's lives is exactly where research needs data: which treatments and changes actually brought blood pressure down for real people, and what got in the way.

How many people live with it

According to the WHO, "the number of adults with hypertension increased from 650 million in 1990 to 1.4 billion in 2024". Of them, the WHO estimates that:

• 600 million (44%) are unaware that they have the condition,
• 630 million (44%) are diagnosed and treated,
• 320 million (23%) have it under control.

So for every person whose blood pressure is controlled, more than three others have hypertension that is not.

Readings taken outside the clinic

Blood pressure measured in a clinic can mislead, which is why guidelines rely on readings taken elsewhere. NICE recommends that if clinic blood pressure is between 140/90 and 180/120 mmHg, doctors offer ambulatory blood pressure monitoring (ABPM) to confirm the diagnosis, and that "if ABPM is unsuitable or the person is unable to tolerate it, offer home blood pressure monitoring (HBPM)".

Many people with high blood pressure keep measuring at home long after the diagnosis, on a cuff or a watch. Months of home readings, alongside a record of what changed (a new medicine, a dose, less salt, more exercise, losing weight), show what actually worked for that person. That is the kind of real-world evidence trials cannot easily collect.

The records worth keeping

At diagnosis, NICE also asks for a set of tests that leave records:

• Blood tests: HbA1c, electrolytes, creatinine, kidney function and cholesterol.
• A urine test for protein (albumin to creatinine ratio) and blood.
• An ECG: a 12-lead electrocardiograph.

With your medication history and your own readings, these make a complete picture. If you do not have the results, ask your practice for a copy.

What sharing it is worth

CureCircle values every contribution with a public benchmark built from what health data has sold for. A complete high blood pressure story with a year of the records the guideline lists comes to about $62 per licence on the benchmark today. With 90 days of home readings from a watch or cuff added, it comes to about $145 per licence. Research also pays people with high blood pressure for their time: a listing of current studies includes $150 for a 75-minute interview with Spanish-speaking patients with cardiovascular disease or high blood pressure. Every line and its source is on the high blood pressure page.

How to share it

You start by writing what you live with in your own words; a few quick questions follow, then an AI interviewer asks about the details only you know, and you rate every treatment and change you tried. You can add test results, letters and your readings as PDFs or photos, and the AI reads them into your own medical file. Before anything is shared, you read the de-identified summary and decide.

Start your story, or read what your health data is worth first.