Blood Pressure High Hypertension

Overview

Blood pressure is the force of blood pushing against the walls of your arteries, the tubes that carry blood from your heart to the rest of your body. High blood pressure, also called hypertension, means this force is consistently too high. Over time, this extra strain can damage your heart, blood vessels, brain, kidneys, and eyes.

Yes. High blood pressure is very common. Around 1 in 3 adults worldwide has it, and many do not know they have it because it rarely causes symptoms.

Anyone can develop high blood pressure, but it becomes more common with age. You may have a higher chance if it runs in your family, if you have overweight, or if you have diabetes or kidney disease.

Symptoms

Common symptoms

• Most people with high blood pressure have no symptoms at all, which is why it is often called a 'silent condition'.
• Some people may notice headaches, dizziness, or nosebleeds, but these are not specific and usually only happen when blood pressure is very high.

Symptoms in children

• Most children with high blood pressure have no symptoms; it is usually 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 may have no symptoms, but high blood pressure is often picked up during regular health visits.
• Some may feel dizzy, tired, or short of breath with everyday activities, though these symptoms can have other causes too.

Causes

Main causes

• For most adults, there is no single cause; high blood pressure often develops gradually over many years.
• Some medical conditions, such as kidney disease or hormone problems, can cause high blood pressure.
• Certain medicines, including some pain relievers, cold remedies, and birth control pills, can raise blood pressure.
• Sleep apnoea, a condition where breathing pauses briefly during sleep, is also linked to high blood pressure.

Risk factors

• Age, as the risk increases with getting older
• Family history of high blood pressure
• Being overweight or living with obesity
• Eating too much salt and not enough fruit and vegetables
• Drinking too much alcohol or smoking
• Not being physically active
• Long-term stress
• Having diabetes or kidney disease

When to see a doctor

See a doctor urgently if:

• If you have a very high blood pressure reading and feel unwell, seek care the same day.
• If you have symptoms like severe chest pain, shortness of breath, a sudden severe headache, or vision changes, call your local emergency number immediately.

Book a routine appointment if:

• Have your blood pressure checked at least once a year as an adult, or more often if your doctor advises.
• If you have a family history of high blood pressure, diabetes, or kidney disease, ask about regular checks.
• If you have already been told you have high blood pressure, keep your follow-up appointments.

Diagnosis

A health professional measures your blood pressure with a cuff around your upper arm. A single high reading is not enough to diagnose hypertension. Your doctor usually repeats the measurement on several occasions or asks you to measure at home before confirming the diagnosis.

Tests that may be done

• Blood pressure measurement using a validated monitor
• Home blood pressure monitoring over several days
• Ambulatory blood pressure monitoring, where you wear a small monitor for 24 hours
• Urine and blood tests to check kidney function and look for possible causes
• Electrocardiogram, also called an ECG, if your doctor suspects strain on the heart

What to expect at your appointment

Your doctor will talk with you about your blood pressure numbers, your overall health, and your lifestyle. They may ask about your family history, medicines, diet, activity, and stress. You may be asked to keep a blood pressure diary. This process is straightforward and usually happens in an outpatient clinic or GP surgery.

Treatment

Treatment for high blood pressure is personalised. It usually starts with lifestyle changes. If your blood pressure is very high, or if lifestyle changes are not enough, your doctor may suggest medication. The goal is to bring your blood pressure into a healthier range and protect your heart, brain, and kidneys.

Self-care at home

• Cut down on salt and avoid adding extra salt to meals
• Eat a balanced diet rich in vegetables, fruit, whole grains, and lean protein
• Take regular physical activity, such as brisk walking, swimming, or cycling
• Maintain a healthy weight or aim for gradual weight loss if needed
• Limit alcohol
• Quit smoking if you smoke
• Find healthy ways to manage stress, such as breathing exercises or talking to someone you trust
• Take any prescribed medicines exactly as directed and ask your doctor or pharmacist if you have concerns

Medical treatments

Medicines for high blood pressure help relax blood vessels or reduce the amount of fluid in the body. There are several different classes of blood pressure medicines, and your doctor will choose one that is appropriate for your age, health, and other conditions. Some people need two or more medicines. Never stop or change your medication without speaking to your doctor first.

When is surgery considered?

Surgery is not a usual treatment for high blood pressure itself. If another condition, such as a narrowed kidney artery or an adrenal gland problem, is causing your high blood pressure, your specialist may discuss a procedure with you. This is uncommon.

Living with this condition

Living with high blood pressure means finding a rhythm that works for you. Take your medicines as prescribed, check your blood pressure as advised, and keep your regular appointments. Small daily habits can make a big difference over time.

Lifestyle tips

• Create a simple routine for taking medication and checking blood pressure
• Use phone reminders or pill organisers if you sometimes forget
• Involve family or friends for support and encouragement
• Try to get enough sleep and manage stress
• Set realistic goals, starting with one change at a time

Diet and exercise

Aim for a balanced plate at most meals: half vegetables and fruit, a quarter whole grains, and a quarter lean protein. Choose water over sugary drinks and limit processed foods. For exercise, try to build up to at least 30 minutes of moderate activity most days. Even a daily walk can help. Ask your doctor what is safe for you.

Mental health and emotional wellbeing

Being told you have high blood pressure can be stressful. Some people feel anxious or worried about their health. It is important to notice these feelings and talk about them. If you are feeling overwhelmed, low, or anxious, reach out to your doctor or a mental health professional. If you are ever in crisis or having thoughts of harming yourself, contact your local crisis support team or emergency services immediately.

Prevention

High blood pressure can sometimes be prevented or delayed with a healthy lifestyle. Even if you have a strong family history, healthy habits can significantly lower your risk.

Screening programmes

Ask your doctor how often you should have your blood pressure measured. For most adults, this means at least once a year, especially after age 40 or if you have risk factors such as obesity, diabetes, or a family history of hypertension.

Complications

If left untreated

• Untreated high blood pressure can damage your arteries, leading to a heart attack or stroke.
• It can weaken the heart muscle over time, causing heart failure.
• It can damage blood vessels in the kidneys, leading to kidney disease or kidney failure.
• It can damage blood vessels in the eyes, causing vision problems or blindness.
• It can increase the risk of memory problems and dementia.

Long-term outlook

The outlook for people with high blood pressure is good when it is detected early and managed well. Blood pressure can be lowered with lifestyle changes and medication, which greatly reduces the risk of complications. With the right support and a clear plan, you can continue to live a full and active life.

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