Heart Screening

Overview

Heart screening means a set of simple checks that look for early signs of heart and blood vessel problems — often before you notice anything wrong. It is not one single test. A doctor or nurse may measure your blood pressure, check your weight and waist size, do a blood test for cholesterol (a fatty substance in your blood) and blood sugar, and ask about your family history, smoking, drinking and activity levels. The aim is to spot risk early, when it is easiest to act on.

Very common. In the UK, adults aged 40 to 74 are usually offered a free NHS Health Check every 5 years, which includes heart and circulation screening. Many workplaces, pharmacies and GP surgeries also offer heart checks.

Heart screening is offered to adults, especially from around age 40 onwards. It may be suggested earlier if you have a strong family history of early heart disease, high blood pressure, diabetes, kidney disease, or if you smoke or have obesity. Children are not routinely screened — young people are usually checked only if they have symptoms, a known heart condition or a family history of inherited heart problems.

Symptoms

Common symptoms

• Most people having heart screening have no symptoms at all — that is the whole point of screening.
• Symptoms that mean you should see a doctor rather than wait for a routine check include: breathlessness on mild effort, such as walking upstairs.
• Unusual tiredness or low energy during normal daily activities.
• Palpitations — a feeling that your heart is racing, fluttering or thumping.
• Dizziness or light-headedness, especially on standing up.
• Swelling in the ankles or legs.
• Chest discomfort that comes on with effort and eases with rest.

Symptoms in children

• Routine heart screening is not offered to children. A child may need a heart check if they have: blue or grey lips or skin, especially during feeding or crying.
• Poor feeding, slow weight gain or sweating heavily during feeds in a baby.
• Getting very breathless or tired much faster than other children during play.
• Fainting during exercise or sport.
• A known family history of an inherited heart condition or sudden cardiac death in a young relative.

Symptoms in older adults

• Breathlessness when walking or climbing stairs that is new or getting worse.
• Tiredness that is out of keeping with your usual level of activity.
• Swollen ankles, feet or legs.
• A racing, fluttering or irregular heartbeat.
• Feeling faint, or actually fainting.
• Chest tightness or pressure, particularly with exertion.

Causes

Main causes

• Heart and circulation problems usually develop from a mix of factors rather than one single cause.
• Narrowed arteries (blood vessels) caused by fatty deposits building up over many years.
• High blood pressure, which puts extra strain on the heart and arteries.
• High cholesterol, which contributes to those fatty deposits.
• Type 2 diabetes or higher-than-normal blood sugar, which damages blood vessels over time.
• Smoking, which speeds up damage to the arteries.
• Inherited conditions, where heart problems run in the family.

Risk factors

• Age — risk rises steadily from around 40 onwards.
• A close relative who had a heart attack, stroke or bypass surgery before age 60.
• Smoking or vaping nicotine.
• High blood pressure, high cholesterol or diabetes.
• Carrying extra weight, especially around the waist.
• Not being physically active.
• Drinking more alcohol than the recommended limit.
• Mental health conditions such as depression, long-term stress or severe anxiety can affect heart health too.
• Some conditions, such as chronic kidney disease or inflammatory conditions like rheumatoid arthritis, raise heart risk.
• South Asian heritage is linked with a higher risk of heart disease at a younger age.

When to see a doctor

See a doctor urgently if:

• You have chest pain, pressure or tightness — call your local emergency number straight away rather than waiting.
• You have sudden severe breathlessness, or you faint.
• You have a fast or irregular heartbeat with dizziness, chest pain or breathlessness.
• You have new swelling in both ankles or legs along with breathlessness.

Book a routine appointment if:

• You are aged 40 to 74 and have not had an NHS Health Check in the last 5 years.
• You have a family history of early heart disease and are not yet 40.
• You have high blood pressure, diabetes, kidney disease or high cholesterol and want your heart risk reviewed.
• You would like to talk about stopping smoking, losing weight or getting more active.
• You feel well but would simply like to know your numbers.

Diagnosis

Heart screening is done through a short appointment, usually with a nurse or GP. They take your details and family history, measure your blood pressure, height, weight and waist, and arrange a blood test. Your results are combined into an estimate of your risk of a heart attack or stroke over the next 10 years. Depending on that result, your doctor may suggest further tests or simply a review in a few years.

Tests that may be done

• Blood pressure measurement — a cuff around the arm, sometimes repeated or worn for 24 hours.
• Blood test for cholesterol and other fats, plus blood sugar or a longer-term sugar measure called HbA1c.
• Height, weight and waist measurement to work out body mass index (BMI).
• A questionnaire about smoking, alcohol, diet, activity and family history.
• An ECG (electrocardiogram) — painless stickers on the chest that record the heart's electrical rhythm.
• An echocardiogram — an ultrasound scan that shows the heart's shape and how well it is pumping.
• A heart rhythm monitor worn for a day or more if you have palpitations.
• Occasionally a CT calcium score — a scan that looks for calcium build-up in the heart arteries.
• If you are younger with a strong family history, your doctor may discuss referral to a specialist genetics or cardiology clinic.

What to expect at your appointment

Allow around 20 to 30 minutes for the appointment, plus a separate visit or home kit for the blood test. You may be asked to avoid caffeine or smoking for a short time beforehand. Results usually come back within a couple of weeks and are explained in plain language, along with what — if anything — to do next. You are always free to ask questions or take time to think before making decisions.

Treatment

The 'treatment' after heart screening depends entirely on what it finds. Many people need no treatment at all, just a repeat check in a few years. If a risk factor is found, the plan is usually built around everyday changes first, with medicine added if your risk stays high or your numbers are well above target.

Self-care at home

• Know your numbers — ask for your blood pressure, cholesterol and blood sugar results and keep a note of them.
• Stop smoking, and avoid vaping nicotine; ask your GP or pharmacy about free stop-smoking support.
• Cut down on salt — most of it comes from processed and ready-made foods.
• Eat more vegetables, fruit, beans, nuts and whole grains, and choose healthier fats such as olive or rapeseed oil.
• Aim for around 150 minutes of moderate activity a week — brisk walking counts.
• Keep alcohol within the recommended limit and have several alcohol-free days a week.
• Aim for 7 to 9 hours of sleep and keep a regular bedtime.
• Take any prescribed medicine as agreed, and ask your pharmacist to check it against anything else you take.

Medical treatments

If your risk is high, your doctor may suggest medicine to lower blood pressure, lower cholesterol, or manage blood sugar. They will explain the benefits and possible downsides and agree a plan with you, with follow-up blood tests to check it is working. Some people are referred to a dietitian, a stop-smoking service, a healthy-lifestyle programme or a supervised exercise scheme. Treatment is always tailored to you — your age, other conditions and what matters to you.

When is surgery considered?

Surgery is not part of routine heart screening. It may be discussed only if tests uncover a significant problem, such as a narrowed heart artery or a heart valve that is not working properly. In that situation a heart specialist would explain the options — including procedures to widen an artery or repair a valve — along with the risks and benefits.

Living with this condition

For most people, heart screening changes very little day to day — it is a check, not a diagnosis. If something is found, you may have a follow-up appointment, a home blood pressure monitor, or a new prescription to get used to. Keep your appointment letters and results together, and tell any other health professional what you are being monitored for.

Lifestyle tips

• Build activity into your normal day — stairs, walking to the shops, gardening, dancing.
• Sit less; even standing up every hour helps.
• Keep a simple food diary for a week if you want to see where small changes could fit.
• Plan meals around vegetables and pulses, with smaller portions of meat and processed foods.
• Watch your waist measurement as well as your weight — it is a good guide to risk.
• Keep up with routine checks even when you feel completely well.
• Ask someone to join you for walks or activity — it makes it easier to keep going.

Diet and exercise

A heart-friendly way of eating is close to the Mediterranean pattern: plenty of vegetables, fruit, beans, lentils, nuts and whole grains; fish twice a week, one of them oily; less red and processed meat; and olive or rapeseed oil instead of butter or lard. Watch salt and added sugar. For activity, aim for moderate exercise that makes you slightly warm and a little out of breath but still able to talk — brisk walking, cycling, swimming or dancing all count. If you have not been active for a while, start with 10 minutes at a time and build up. If you have chest pain, known heart disease or joint problems, check with your doctor before starting something new.

Mental health and emotional wellbeing

Being told you have a raised heart risk can feel frightening, and some people become very anxious about every twinge. Others feel relieved to have concrete numbers to work with. Both reactions are normal. Anxiety and low mood can themselves affect heart health, so it is worth telling your doctor how you feel — talking therapies and support groups help many people. If you ever feel unable to cope or have thoughts of harming yourself, contact your local emergency number or a crisis line in your country straight away, and reach out to someone you trust.

Prevention

You cannot prevent every heart problem — age and family history are fixed. But a large share of heart and circulation disease is linked to things you can change, and screening helps you find out which of those apply to you. Even modest improvements in blood pressure, cholesterol, smoking and activity meaningfully lower risk.

Vaccines

There is no vaccine for heart disease itself. However, staying up to date with recommended vaccines — including flu and, where offered, pneumonia vaccines — is advised for people with heart conditions, because infections can put extra strain on the heart. Ask your GP or pharmacist what is recommended for you.

Screening programmes

In the UK, the NHS Health Check is offered every 5 years to adults aged 40 to 74 who do not already have heart disease, diabetes or kidney disease. It includes blood pressure, cholesterol, blood sugar and a risk estimate. If you are outside that age range but have a strong family history, ask your GP whether earlier screening is right for you.

Complications

If left untreated

• High blood pressure or high cholesterol can quietly damage arteries for years without you noticing.
• Narrowed heart arteries can lead to angina (chest pain on exertion) or a heart attack.
• Narrowed arteries in the brain can lead to a stroke or a mini-stroke (TIA).
• The heart can become weaker over time, leading to heart failure — breathlessness, tiredness and swelling.
• Some heart rhythm problems become harder to treat the longer they go unnoticed.
• Kidney damage can develop alongside heart and circulation disease.

Long-term outlook

The outlook is genuinely encouraging. Most people who have heart screening are reassured, and many who are found to be at higher risk make changes that lower it within a year. Blood pressure and cholesterol respond well to lifestyle changes and, where needed, medicine. Finding something early is good news — it gives you and your doctor the best possible chance to act.

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