Causes of hypertension in young adults

Some people have primary hypertension, where several influences gradually raise pressure without one identifiable disease. Family tendency, excess body weight, salty food, low activity, alcohol, smoking, stress, and poor sleep can contribute. Secondary hypertension has a specific trigger, such as chronic kidney disease, narrowing of an artery supplying a kidney, thyroid or adrenal problems, or obstructive sleep apnoea. Certain pain medicines, decongestants, steroids, hormonal medicines, and recreational substances can also raise readings. A single high reading does not establish the cause; repeat measurements and the pattern over time matter.

High blood pressure often causes no noticeable symptoms. Untreated hypertension can strain the heart and blood vessels, increasing the risk of problems such as heart failure, stroke, transient ischaemic attack, or angina. These complications are not proof of the cause of a particular reading.

Arrange a medical review if raised readings recur, especially when hypertension starts at a young age. Bring a list of prescribed medicines, supplements, energy products, and recreational substances, and mention loud snoring or pauses in breathing during sleep. Your clinician may confirm readings outside the clinic and check urine, kidney function, blood sugar, cholesterol, and selected hormones. Do not stop prescribed treatment without advice. Regular activity, less salt, avoiding tobacco, moderating alcohol, improving sleep, and reaching a healthy weight can support blood-pressure control.

Seek urgent medical help for a very high reading accompanied by chest pain, severe breathlessness, weakness or numbness on one side, trouble speaking, confusion, fainting, or a sudden severe headache. Those symptoms can signal an emergency affecting the heart, brain, or blood vessels. A high reading without symptoms still needs prompt clinical advice when it remains elevated on repeat checks.

Ask whether your readings need confirmation at home or with ambulatory monitoring, whether a secondary cause should be investigated at your age, which tests are appropriate, and whether any medicine or supplement could be contributing. You can also ask what target applies to you and how to measure blood pressure correctly.