
Your guide to stroke prevention
נבדק על ידי Dr Colin Tidy, MRCGPעודכן לאחרונה על ידי Lynn StephenLast updated 20 Oct 2025
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Every year, around 100,000 people in the UK have a stroke. Whilst there are around 1.4 million people in the UK who have survived a stroke many of these depend on others for their care as a result. Knowing your risk factors, getting them treated, and making simple changes to your lifestyle can cut your chance of stroke dramatically.
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How common are strokes?
שבץ is the largest cause of disability in the UK. Whilst a stroke is often thought to only affect older people they can strike at any age - around one third of those who have a stroke are under the age of 65. The vast majority of strokes could be prevented if we all took simple steps to identify and reduce our risk factors.
Stroke survivors
חזרה לתוכןA survey from the Stroke Association shows that nine in ten stroke survivors would go back in time and urge their younger self to make lifestyle changes which may have prevented their stroke. More than eight in ten of these people said they hadn’t realised that were susceptible to stroke.
All the changes these stroke survivors would have made are based on strong science - they're changes all of us can make to cut our chance of stroke.
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Can stress cause a stroke?
חזרה לתוכןAlmost half said they would have taken steps to reduce their stress levels. Stress itself can raise your blood pressure - a recurring theme, because high blood pressure is perhaps the single biggest health hazard for stroke.
But if you're stressed, you're also less likely to look after yourself. That means you're more prone to indulging in all the unhealthy behaviours that can increase your chance of stroke.
What's the link between high blood pressure and stroke?
חזרה לתוכןTwo in five stroke survivors in the survey said they would have monitored their blood pressure. לחץ דם גבוה affects more than one in four UK adults. It's often known as 'the silent killer' because it rarely causes symptoms and therefore often isn't diagnosed. In fact, it's estimated that around five million people in the UK have untreated high blood pressure.
High blood pressure contributes to about half of strokes - it can damage your blood vessels, causing them to become harder and narrower. It can also cause weakened blood vessels to burst, leading to bleeding in the brain. Lifestyle changes - and, if these aren't enough, medicines - are highly effective at lowering blood pressure.
How to lower blood pressure
Making lifestyle changes
Lifestyle changes, including minor tweaks to your diet, can significantly reduce your blood pressure and with it your chance of stroke. The דיאטה DASH has many similarities with the Mediterranean diet, but is specifically designed to help tackle high blood pressure.
Lowering your salt intake
Public Health England (now known as the UK Health Security Agency) reminds us that where blood pressure is concerned, excess salt in your diet is one of the most important health hazards you can change. A high salt diet disrupts the natural sodium balance in the body. This causes fluid retention, which increases the pressure exerted by the blood against blood vessel walls. If we all reduced our salt intake by just one gram a day, we could save more than 4,000 early deaths a year in the UK.
To reduce the salt in your diet, you can stop adding salt to your food. It's also important to remember that three quarters of the salt in your diet comes from salt in prepared foods you eat. Preserved foods - salamis, hams, bacon and pickles, along with salted peanuts and crisps, are all high in salt. Cooking from scratch means you know exactly how much salt is in your food. Using herbs, spices and lemon juice allows you to keep the flavour without ramping up the salt.
Can salt substitutes cut my chance of stroke?
It's the sodium in normal salt which increases your blood pressure, and it's possible to buy reduced sodium alternatives such as LoSalt in most supermarkets. Here, two thirds of the sodium is replaced by potassium.
In recent years there has been much interest in reduced sodium alternatives for people who still want the taste of salt.
A study of more than 20,000 over-60s showed that switching to a reduced sodium salt substitute:
Cut the chance of stroke by 14%, and of heart attack, stroke or heart failure by 13%.
Reduced the chance of dying by 12%.
Salt substitutes can be dangerous if you are at risk of developing high potassium levels in the blood, such as if you have kidney issues, and if you are taking certain medicines. Check with your doctor if you're unsure if they are safe for you.
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What's the link between exercise and stroke?
חזרה לתוכןOne in three people surveyed would also have exercised more. Many people with high blood pressure are concerned that intense physical exertion might do more harm than good. In fact, the opposite is true. While your blood pressure may rise briefly when you're exercising, your blood pressure is likely to be lower overall if you exercise regularly.
In addition, regular exercise also strengthens your muscles - reducing the likelihood of falls - and helps you maintain mobility.
Does high cholesterol increase my chance of stroke?
חזרה לתוכןMore than one in five stroke survivors wish they had monitored their blood cholesterol. Well known as a major risk factor for התקף לב, high cholesterol can also increase your chance of stroke.
A heart-healthy diet, low in saturated fat and higher in vegetables, fruit, unrefined carbohydrates and heart-healthy oils, can help protect against both heart attack and stroke. The Mediterranean diet ו Portfolio diet are excellent examples.
If you're over 40 and haven't had your cholesterol checked recently, speak to your community pharmacist, practice nurse or doctor - they can arrange a simple blood test.
Why do abnormal heart rhythms increase the chance of stroke?
חזרה לתוכןפרפור פרוזדורים (AF) is the commonest type of abnormal heart rhythm among people in the UK. AF increases the chance of a clot forming in your heart. Part of this clot can break off and travel to your brain, leading to a stroke.
The key symptoms of AF are:
Palpitations - feeling your heart beat fast.
Chest pain.
קוצר נשימה.
עייפות.
An irregular pulse - sometimes without any other symptoms.
See your doctor if you think you have any of these symptoms.
Without treatment, people with AF are up to five times more likely than other people to have a stroke. What's more, because the area of the brain affected by AF-related strokes is often larger than other strokes, they're often more severe. However, this probability is very greatly reduced by taking anticoagulants - blood thinning medicines.
With thanks to 'My Weekly' magazine where this article was originally published.
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תזונה ודיאטה
How diet can reduce your risk of stroke and heart attack
Heart attack and stroke between them are still the biggest killers in the UK, and diet has a huge influence on your risk of both. Fortunately the same changes to your diet will cut your risk of both conditions, whether you've had a heart attack/stroke or not.
by Dr Sarah Jarvis

מוח ועצבים
How to spot a mini-stroke: early signs and symptoms
Although a mini-stroke isn't a full stroke, the symptoms are very similar. With a mini-stroke these symptoms go away completely within 24 hours. However, it is still an important warning sign your chance of having a major stroke in the future has increased. It can be a signal that you're about to have a full stroke, so you should take immediate action. Spotting the signs of a mini-stroke is crucial for getting medical help and advice. This can significantly reduce your likelihood of future episodes and the chance of a more serious stroke.
מאת ויקטוריה ראו
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About the authorView full bio

Dr Sarah Jarvis
SEO Executive
MA (Cantab), BM, BCh (Oxon), DRCOG, FRCGP, MBE
After training in medicine at Cambridge and Oxford, Dr Sarah Jarvis MBE became a GP.
About the reviewerView full bio

Dr Colin Tidy, MRCGP
General Practitioner, Medical Author
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr Colin Tidy is an NHS Doctor, based in Oxfordshire.
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המידע בעמוד זה נבדק על ידי קלינאים מוסמכים.
Next review due: 20 Oct 2028
20 Oct 2025 | הגרסה האחרונה
20 מרץ 2023 | פורסם במקור
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Dr Sarah Jarvis

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