preventing blood pressure
Informed by recognized medical guidance
Overview
High blood pressure, also called hypertension, happens when the force of blood against the inner walls of your blood vessels is too high. Over time, this extra force can damage your heart, brain, kidneys, and eyes. The good news is that you can often prevent or manage it with healthy habits.
Key facts
- High blood pressure often has no symptoms, so it can quietly harm your body for years.
- It is a leading cause of heart attacks and strokes.
- Healthy lifestyle changes can lower your blood pressure and may help you avoid needing medication.
Yes, it is very common. About 1 in 3 adults in the UK has high blood pressure.
Anyone can get high blood pressure, but it becomes more common as you get older. You are also more at risk if you are overweight, have a family history of high blood pressure, eat too much salt, drink too much alcohol, smoke, or do not get enough physical activity.
Symptoms
- Severe chest pain
- Severe headache that comes on suddenly
- Trouble speaking or understanding speech
- Weakness or drooping on one side of the face or body
- Sudden loss of vision or blurred vision
- Difficulty breathing or shortness of breath
- Confusion or feeling very drowsy
- ⚠A single very high blood pressure reading (such as 180/120 or higher) with no symptoms
- ⚠Frequent headaches or dizziness
- ⚠Nosebleeds that keep coming back
- ⚠Swelling in your legs or ankles
Common symptoms
- Most people do not have any symptoms at all.
- Some people may have dull headaches, dizziness, or nosebleeds, but these are not specific to high blood pressure.
- Very high blood pressure can cause a severe headache, blurred vision, chest pain, or difficulty breathing.
Symptoms in children
- Children usually have no symptoms. High blood pressure in children is often found during a routine check-up.
- If symptoms do occur, they may include headaches, tiredness, blurred vision, or trouble concentrating.
Symptoms in older adults
- Older adults often have no symptoms, but they may have higher readings because blood vessels stiffen with age.
- Rarely, symptoms like dizziness, falls, or confusion can occur, especially if blood pressure drops when standing up.
Causes
Main causes
- For most people, the cause is unknown. This is called primary or essential hypertension.
- Some medical conditions can cause high blood pressure, such as kidney disease, thyroid problems, or sleep apnoea.
- Medicines like some painkillers, cold remedies, or birth control pills can raise blood pressure in some people.
- Lifestyle habits like a high-salt diet, drinking too much alcohol, smoking, and lack of physical activity can all increase blood pressure.
Risk factors
- Age (your risk goes up as you get older)
- Family history of high blood pressure
- Being overweight or having obesity
- Eating too much salt and not enough fruit and vegetables
- Drinking alcohol heavily or regularly
- Smoking or using tobacco products
- Not doing enough physical activity
- Long-term stress or anxiety
- Having diabetes, high cholesterol, or kidney disease
When to see a doctor
See a doctor urgently if:
- If you have any of the emergency symptoms listed above, call your local emergency number immediately (for example, 911, 999, or 112).
- If you have a blood pressure reading of 180/120 or higher and feel any symptoms, such as chest pain, vision changes, or severe headache, get emergency help right away.
- If you have a reading of 180/120 or higher but feel fine, see your doctor or local urgent care centre within 24 hours.
Book a routine appointment if:
- Get your blood pressure checked at least once every 5 years if you are a healthy adult over 18.
- If you are over 40, or if you have risk factors like diabetes, obesity, or a family history, ask your doctor to check it more often.
- If you are pregnant, your blood pressure will be checked at your antenatal appointments.
Diagnosis
Blood pressure is measured with a cuff placed around your upper arm. To diagnose high blood pressure, your doctor will usually take at least two or more readings on separate occasions. Sometimes they may ask you to wear a monitor for 24 hours.
Tests that may be done
- Blood pressure measurement with a digital monitor or manual cuff
- Ambulatory blood pressure monitoring (a small device that measures your pressure over 24 hours)
- Blood tests and urine tests to check kidney function and for other causes
- An electrocardiogram (ECG) to check for heart damage
What to expect at your appointment
Having your blood pressure checked is quick and painless. You will sit with your arm supported, and the cuff will squeeze for a few seconds. Your doctor will explain your numbers and what they mean. If you are diagnosed with high blood pressure, they will likely ask you to make some lifestyle changes and may prescribe medicine if needed.
Treatment
Treatment aims to lower your blood pressure to a safe level and protect your organs. For most people, this starts with lifestyle changes — like eating healthier, cutting back on salt, moving more, and reducing stress. If lifestyle changes are not enough, your doctor may add medication.
Self-care at home
- Reduce salt in your meals — aim for less than 6 grams (about 1 teaspoon) per day.
- Eat more fruits, vegetables, whole grains, and low-fat dairy products.
- Exercise for at least 150 minutes of moderate activity per week, such as brisk walking.
- Maintain a healthy weight — losing even 5% of your body weight can help.
- Limit alcohol to no more than 14 units per week and have alcohol-free days.
- Quit smoking if you smoke.
- Find healthy ways to manage stress, like deep breathing, meditation, or talking to someone you trust.
- Check your blood pressure at home if your doctor recommends it, and keep a record.
Medical treatments
Your doctor may prescribe medicines to lower your blood pressure. These drugs work in different ways — for example, some relax your blood vessels, some help your body get rid of extra fluid, and some slow your heartbeat. The right medicine depends on your age, other health conditions, and your blood pressure level. Always take your medicine exactly as prescribed, and do not stop without talking to your doctor.
When is surgery considered?
Surgery is rarely needed for high blood pressure itself. In some cases, an underlying cause, such as a narrowing of an artery to the kidney, can be treated with a procedure or surgery. Your doctor will explain if this applies to you.
Living with this condition
Living with high blood pressure usually means making small, lasting changes. Take your medicines as prescribed, keep your follow-up appointments, and check your blood pressure at home if your care team advises. It can help to keep a simple log of your readings to share with your doctor.
Lifestyle tips
- Build a routine — take a walk every day, even if it's short.
- Plan your meals ahead, and cook more at home to control salt.
- Find a support buddy — family or friends can help you stay on track.
- Manage stress with simple habits like slow breathing, gentle exercise, or hobbies.
- Set reminders to take your medication.
- Go to your scheduled check-ups even if you feel fine.
Diet and exercise
A heart-healthy diet and regular physical activity are two of the best ways to control blood pressure. Aim for plenty of vegetables, fruit, whole grains, lean proteins (like chicken and fish), and low-fat dairy. Eat less processed food, salty snacks, and sugary drinks. For exercise, try to get at least 150 minutes a week of moderate activity, such as brisk walking, cycling, or swimming. Start slowly and build up — even small amounts help.
Mental health and emotional wellbeing
Being diagnosed with high blood pressure can make some people feel worried or stressed. Stress itself can raise blood pressure, so it's important to find ways to relax. Talk about your feelings with your doctor, family, or friends. If you feel anxious or depressed, ask your healthcare team for support. You are not alone, and help is available.
Prevention
Many cases of high blood pressure can be prevented or delayed. The same healthy habits used to treat it — eating well with less salt, staying active, keeping a healthy weight, not smoking, and limiting alcohol — can also prevent it from developing.
Screening programmes
Regular blood pressure checks are the best way to catch high blood pressure early. Ask your doctor or pharmacist to check your blood pressure at least every few years, and more often if you have risk factors. Many pharmacies offer free blood pressure checks.
Complications
If left untreated
- Heart attack
- Stroke
- Heart failure
- Kidney disease or kidney failure
- Vision loss
- Vascular dementia
- Peripheral artery disease
Long-term outlook
The outlook is very good if you keep your blood pressure under control. With proper treatment and lifestyle changes, most people with high blood pressure live long, healthy, and active lives. Taking small, steady steps can make a big difference to your future health.
Find support
International organisations
Local organisations
- NHS ↗ · UK
External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.
Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.