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PREVENTION & CARE

High blood pressure

Blood pressure can stay high without causing symptoms. Reliable measurements make it possible to assess risk and plan lasting care.

Why feeling well is not enough

Blood pressure is the pressure of blood against vessel walls. Persistently high pressure raises the risk of damage to the heart, brain and kidneys. Anxiety, activity and measurement technique can affect a single reading, so one high result cannot establish the long-term pattern. Diagnostic thresholds and treatment targets depend on the guideline and individual circumstances; they are different concepts.

Make the measurements useful

Sit quietly before a reading, with feet flat and the supported arm at heart level, and use a correctly sized cuff. Record the value, time and circumstances, and have a health professional check your technique. Office and home readings can differ; discuss whether home or ambulatory monitoring would clarify the pattern.

Combine daily habits with treatment

Less salty food, suitable physical activity, stopping smoking and avoiding excessive alcohol can help reduce risk. Some people still need medicines. Reviews should consider trends, adverse effects and whether the plan is manageable. Improved readings do not justify stopping treatment independently. Raise cost or supply problems so the plan can be made sustainable.

When routine follow-up is not enough

Very high blood pressure with chest pain, breathing difficulty, confusion or major visual changes needs immediate medical help. Sudden one-sided weakness or difficulty speaking also needs emergency assessment; do not delay to complete a set of readings. A routine care plan should explain what to do about unusual readings, whom to contact and when to return for review.

Questions for your clinician

  • Are my cuff and technique appropriate, and how should I record home readings?
  • What establishes the diagnosis, and what is my treatment target?
  • Whom should I contact about dizziness, unusual readings or difficulty obtaining medicine?

Explore the underlying science

Sources

Source checks and bilingual AI editorial review: 14 September 2026. This is health education; treatment decisions depend on individual circumstances and local guidance.