High blood pressure: understanding, measuring and tracking it

Understanding high blood pressure

High blood pressure (hypertension, or HTA in French) is one of the most common conditions in medicine and one of the quietest. It means the pressure of the blood in the arteries stays too high over time. What matters is not a single reading on a stressful day, but an elevation that persists and constantly strains the heart and vessels.

Understanding your blood pressure, measuring it correctly and tracking it regularly is what allows hypertension to be spotted and monitored, and the effect of lifestyle measures to be judged — working with a cardiologist when needed.

Blood pressure cannot be felt: you don't sense it rising. That is exactly why it is measured, not estimated.

Systolic and diastolic

Blood pressure is read as two numbers, for example 120/80 mmHg.

• The systolic pressure (the higher number) is the pressure in the arteries when the heart contracts and ejects blood — the peak.
• The diastolic pressure (the lower number) is the pressure between beats, when the heart relaxes and fills — the background pressure.

Both matter, and their interpretation depends on the context of the measurement (office, home, effort, emotion).

Why hypertension is silent

Its defining feature is that it usually causes no symptoms. Someone can live for years with high pressure without headaches, fatigue or any warning — hence the name 'silent killer'. Sustained high pressure nonetheless strains the heart, arteries and kidneys. The only way to know is not to wait for a symptom but to measure — at the office and, increasingly, at home.

Some signs still warrant prompt medical advice: unusually intense headaches, visual disturbances, repeated nosebleeds, breathlessness or chest pain. They are not specific to hypertension, but they justify a consultation.

Measuring: office and home

The office measurement remains a reference, but it has a known limit: the 'white-coat effect', a rise in pressure simply from being in consultation. Conversely, some people are normal at the office and high at home. Hence the value of readings taken outside the office.

Home blood-pressure monitoring means measuring at home, at rest, with a validated device (an upper-arm cuff is preferred). To be reliable it follows a now-common routine, often summarised as the 'rule of 3': three measurements in the morning and three in the evening, on several consecutive days, seated and at rest.

This repetition is not excess: pressure varies from moment to moment. What counts is not one isolated reading but the average of several taken under good conditions — and it is this average that the doctor interprets.

What thresholds?

There is no single universal threshold: reference values depend on current guidelines, the setting and the person. As a classic benchmark, European guidelines often use, for an office reading, an order of magnitude around 140/90 mmHg above which hypertension is considered; home thresholds are somewhat lower. These figures are landmarks, not a diagnosis: only a health professional interprets readings and, where appropriate, diagnoses hypertension.

Good home-measurement practice

| Do | Avoid | |---|---| | Sit, back supported, rest for 5 minutes first | Measuring right after effort or under stress | | Rest the arm on a table, cuff at heart level | Measuring while standing or with the arm hanging | | Use a validated device with the right cuff | Trusting an unchecked monitor | | Repeat and record every value | Keeping only one 'reassuring' figure | | Measure away from coffee, tobacco and effort | Talking or moving during the measurement |

Recording the results — on a chart or an app — is essential: it is this dated, regular trace that lets the doctor judge and adjust.

Lifestyle and follow-up

Lifestyle plays a central role: limiting salt, favouring fruit and vegetables, keeping up regular physical activity, moderating alcohol, avoiding tobacco, and watching weight and sleep. Follow-up involves the family doctor and, depending on the situation, the cardiologist — consulted notably when repeated readings are high, with risk factors, or with signs of organ impact. The pace of follow-up and any further tests are for the doctor to decide, according to the context and local regulations.

On the practitioner side

For the cardiologist, the value of home monitoring lies in its traceability. Scattered readings on scraps of paper are hard to interpret; dated, averaged, chartable measures change how a file reads. Practice-management software like Cabdivin helps centralise this data in the patient record, track it over time, schedule review reminders and structure reports, alongside the rest of the features (scheduling, records, reminders).

Key takeaway

High blood pressure is common and silent, but measurable — and that is the whole point. Understanding systolic and diastolic pressure, practising careful home monitoring with the rule of three, adopting a favourable lifestyle and relying on regular medical follow-up all help you stay in control. Thresholds remain landmarks to be interpreted by a professional: when in doubt, the doctor — and if needed the cardiologist — decides. To find a practitioner, the Cabdivin directory lists health professionals in Morocco. For practitioners, Cabdivin structures the tracking of readings, progress curves and review reminders: free 14-day trial, no credit card required — discover Cabdivin.