Pathophysiology of hypertension explained

Blood pressure depends on how strongly the heart pumps and how much resistance the arteries provide. If arteries become less flexible or narrower, the heart must push harder to move blood through them. Hormone systems that control salt, fluid and vessel tightening can also keep pressure raised. Over time, force against the vessel lining can cause thickening, stiffness and damage. The heart may have to work harder and become enlarged, while blood vessels supplying the brain, kidneys and eyes may be injured. Hypertension often has no clear symptoms, so feeling well does not show whether pressure is controlled.

Have readings taken correctly and keep a record if your clinician recommends home monitoring. Use prescribed medicines consistently; different medicines work by relaxing arteries, reducing fluid load or changing signals that control pressure. Limit smoking, stay active within your abilities, choose a balanced eating pattern and work towards a weight that supports your health. Tell your clinician about snoring or interrupted breathing during sleep, kidney problems and every medicine or supplement you take. These details can reveal contributors and guide treatment. Related conditions include Chronic Kidney Disease, Obstructive Sleep Apnoea and Obesity.

Seek emergency help for a sudden severe headache with weakness, facial drooping, speech difficulty, confusion, vision loss, chest pain, severe breathlessness or fainting. These symptoms may signal a stroke, heart problem or other emergency, regardless of a single home reading. If readings remain unexpectedly high without symptoms, contact your healthcare professional promptly for advice rather than changing medicine yourself.

Ask what your readings mean, how and when to measure at home, which target suits your health, and when treatment should be reviewed. Discuss kidney checks, sleep symptoms, side effects, interactions and warning signs of Stroke, Angina or Heart Failure.