Preventing Another Stroke: Reducing Your Risk After Stroke
Having one stroke can leave you wondering what you can do to stop it happening again. You cannot control every factor, but understanding your own risk factors, following medical treatment and looking after your wider health can all form part of secondary stroke prevention.
Can you reduce the risk of having another stroke?
Yes. Although nobody can promise that another stroke will never happen, there are recognised ways of reducing stroke risk.
The right prevention plan depends on why your stroke happened, the type of stroke you had, other health conditions and the results of your medical investigations.
For some people the priority may be controlling blood pressure or cholesterol. For others it may involve atrial fibrillation, antiplatelet or anticoagulant medication, diabetes management, stopping smoking or addressing several factors together.
It is usually a combination of understanding your individual risks, following appropriate treatment and making sustainable changes where they can help.
Start by understanding what your medical team found
“How do I prevent another stroke?” is closely connected to another question:
Sometimes the cause is clear. Sometimes several risk factors are present. And sometimes extensive investigations do not produce one definitive explanation.
Blood-vessel disease
Narrowing or disease within arteries may influence the treatment recommended to reduce future vascular risk.
Atrial fibrillation
AF can allow blood clots to form in the heart and may lead to anticoagulant treatment when appropriate.
Other cardiac findings
Some people undergo investigations for possible cardiac sources of stroke, including conditions such as a PFO in selected cases.
Blood pressure matters
High blood pressure is one of the major modifiable risk factors for stroke.
High blood pressure can damage blood vessels over time and may exist without producing obvious symptoms.
After stroke, your healthcare team may monitor your blood pressure and, where appropriate, recommend medication and lifestyle changes to help control it.
Know your numbers
Having blood pressure checked allows you and your healthcare team to identify whether it needs further attention.
Follow your individual plan
Do not change prescribed blood-pressure medication because of a single home reading without appropriate medical advice.
Cholesterol and vascular health
Cholesterol is another important part of cardiovascular risk.
For many people who have experienced ischaemic stroke or TIA, lipid lowering becomes part of longer-term secondary prevention.
Statins are commonly used to reduce LDL cholesterol and future cardiovascular risk. The appropriate medication and target depend on the individual's circumstances and should be managed with their healthcare team.
Preventive medicines are often prescribed because of future risk rather than because they make you feel noticeably different day to day.
Take prescribed stroke-prevention medication seriously
Medication after stroke depends on the type and suspected cause of the stroke.
Antiplatelet medication
Medicines that reduce platelet activity may be prescribed following certain ischaemic strokes or TIAs to reduce future clot-related vascular events.
Anticoagulants
Where atrial fibrillation or another appropriate indication is present, anticoagulants may be prescribed to reduce the likelihood of harmful blood clots forming.
Other medicines
Treatment may also include medication for blood pressure, cholesterol, diabetes or other health conditions contributing to overall risk.
Antiplatelets and anticoagulants are not interchangeable and treatment depends on the individual's stroke and medical circumstances.
I wanted to know what I could actually control
After my stroke at 44, one of the biggest questions was why it had happened in the first place.
I went through years of investigation. A PFO was identified and later closed, and atrial fibrillation and flutter subsequently became part of my medical story.
I also take prescribed medication as part of my own prevention strategy.
But prevention for me hasn't meant spending every day thinking about having another stroke.
It has meant taking the medical side seriously while also improving things I could influence — my food, exercise, alcohol intake and general health — and then getting on with living.
My prevention plan is not your prevention plan
My stroke history, heart investigations and medication are personal to me. Another survivor may need a very different approach.
For me, prevention became part of life rather than the whole of life.
Atrial fibrillation and stroke prevention
AF deserves particular attention because the irregular rhythm can allow blood clots to form inside the heart.
Doctors assess stroke risk in people with AF and may prescribe an anticoagulant where the expected protection against stroke outweighs the bleeding risk.
Treatment may also include management of the heart rate or rhythm, depending on the person's symptoms and circumstances.
Even if AF is treated with cardioversion or ablation, decisions about anticoagulation still require individual stroke-risk assessment.
Diabetes and blood sugar
Diabetes increases cardiovascular risk and can damage blood vessels over time.
If you have diabetes, managing blood glucose, blood pressure, cholesterol and other cardiovascular risk factors can therefore form part of reducing future stroke risk.
Diabetes treatment should be managed with your healthcare team rather than changed solely on the basis of general information online.
If you smoke, stopping is one of the most important changes you can make
Smoking damages blood vessels and increases cardiovascular risk.
Stopping smoking is recommended as part of reducing the risk of another stroke and improving wider health.
If stopping feels difficult, support is available through NHS stop smoking services, pharmacies and healthcare professionals.
Food after stroke: think long term rather than perfect
A balanced diet can support cardiovascular health, healthy weight, blood pressure, cholesterol and diabetes management.
That generally means building meals around foods such as vegetables, fruit, wholegrains, appropriate protein sources and healthier fats, while limiting excessive salt, highly processed foods and excess saturated fat.
You do not have to create a supposedly “perfect” stroke diet overnight.
Sustainable improvements that become normal habits are likely to be more useful than a short burst of extreme restriction.
What changed for me
I gradually paid more attention to the quality of my food, ate more protein, reduced some of the things I had previously consumed without thinking much about them, and became more conscious of alcohol.
Those were changes that suited my own life. SHF is not suggesting that somebody else needs to copy my diet.
Exercise can be part of looking after your future health
Physical activity has wider cardiovascular benefits and is included in NHS advice for reducing stroke risk.
After stroke, however, the right activity and pace depend on your abilities, medical circumstances and stage of recovery.
My own return to exercise was cautious. I underwent medical assessment before gradually starting again, and my wife initially ran with me because I was nervous about exercising alone.
Today exercise remains a large part of my life, although the way I train has changed over the years.
Consistent, appropriate activity can be much more useful than trying to prove how hard you can train.
Exercise remains part of how I look after my physical and mental health.
What about alcohol?
Excessive alcohol can contribute to high blood pressure, weight gain and atrial fibrillation, all of which can affect cardiovascular and stroke risk.
NHS guidance advises people who regularly drink alcohol to remain within the recommended low-risk limits and to have alcohol-free days.
Some people may be advised to drink less or avoid alcohol for individual medical reasons, including interactions with medication or other health conditions.
Weight is part of the picture — not the whole picture
Where somebody is carrying excess body fat, gradual weight loss may help improve factors such as blood pressure, diabetes risk and wider cardiovascular health.
But stroke prevention should not be reduced to a number on the scales.
Blood pressure, smoking, AF, cholesterol, diabetes, medication, physical activity and the cause of the original stroke may be much more important pieces of the individual's risk profile.
Prevention and fear are not the same thing
Taking stroke prevention seriously does not mean spending every day waiting for another stroke.
It is possible to become so focused on risk that every unusual sensation feels threatening.
Prevention is about dealing appropriately with the things that can be addressed — not trying to achieve a guarantee that nobody can give.
Fear of Another Stroke
Explore fear of recurrence, symptom anxiety and gradually learning to trust life again.
Explore fear of another stroke →Confidence After Stroke
Explore rebuilding confidence in your body, exercise, independence and everyday life.
Explore confidence →Focus on what you can influence
Attend reviews
Keep appropriate medical appointments and discuss changes in your health or medication.
Take medication as prescribed
If you are having side effects or concerns, talk to a healthcare professional rather than simply stopping treatment.
Know your blood pressure
Monitoring and treating high blood pressure can be an important part of stroke prevention.
Stay appropriately active
Build movement and physical activity into life in a way that is suitable for your recovery and health.
Look after your diet
Aim for a balanced, sustainable approach rather than chasing a miracle food or supplement.
Don't let prevention become your entire life
Taking sensible action can coexist with work, family, hobbies, exercise, travel and enjoying life.
There is no supplement that guarantees stroke prevention
Stroke prevention is not something that can safely be replaced by a supplement, herbal product or wellness trend.
Some supplements and herbal remedies can also interact with prescribed medication, including anticoagulants and antiplatelet medicines.
A pharmacist, GP or other appropriate healthcare professional can advise about potential interactions.
Prevention does not remove the need to recognise another stroke
Even when somebody is doing everything they reasonably can to reduce risk, new stroke symptoms still require urgent medical attention.
Remember FAST
- Face: facial weakness or drooping
- Arms: weakness or numbness in an arm
- Speech: slurred, confused or difficult speech
- Time: call 999
If you think you or somebody else may be having a stroke, call 999 immediately — even if the symptoms improve or disappear.
Questions people ask about preventing another stroke
How can I reduce my risk of another stroke?
The right approach depends on your individual stroke and medical history. Common areas include controlling blood pressure and cholesterol, managing conditions such as AF or diabetes, taking prescribed medication, not smoking, remaining appropriately active, eating a balanced diet and limiting excess alcohol.
Can another stroke be completely prevented?
No strategy can guarantee that another stroke will never occur. Prevention aims to reduce modifiable risks and treat relevant medical conditions as effectively as possible.
What is the most important risk factor to control?
This depends on the individual, although high blood pressure is a major modifiable stroke risk factor. Your healthcare team can help identify which factors matter most in your particular situation.
Do I need medication for life after a stroke?
Some people are prescribed long-term preventive medication, but the exact treatment and duration depend on the type and cause of stroke and other health conditions. Do not stop prescribed medication without medical advice.
Does exercise help prevent another stroke?
Physical activity supports cardiovascular health and is included in NHS stroke-risk reduction advice. After stroke, the appropriate type and intensity should reflect your abilities and medical circumstances.
Can AFib cause another stroke?
AF can increase stroke risk because blood clots may form within the heart. Where appropriate, anticoagulant treatment can substantially reduce clot-related stroke risk. Treatment decisions require individual assessment.
Stroke prevention is important. So is having a life to protect.
Blood pressure, medication, food and exercise matter.
But long-term recovery is also about confidence, independence, relationships, work, interests and finding a way forward after something that may have changed your view of your own health.
Stroke Health Fitness is being built to help people navigate both sides of that picture.
Ask SHF — in development
Ask SHF is being designed to help stroke survivors describe their circumstances, concerns and goals and then navigate towards relevant SHF information and support.
It will not assess personal stroke risk, diagnose symptoms or tell people to alter medication.
See what we're building →Continue exploring
AFib and Stroke
Understand why atrial fibrillation can increase stroke risk and how it is assessed and treated.
Explore AFib and Stroke →Exercise After Stroke
Explore returning to activity, gym work, walking, strength and rebuilding fitness.
Explore exercise →Healthy Living
Explore sustainable approaches to movement, food, sleep and wider health after stroke.
Explore healthy living →Trusted information and further reading
Stroke Health Fitness combines lived experience with established UK healthcare guidance.
Medical and safety information
This page provides general information and lived experience. It cannot calculate your personal risk of another stroke, determine the cause of your original stroke or recommend individual medication or treatment.
Do not start, stop or change prescribed stroke, blood-pressure, cholesterol, diabetes, antiplatelet, anticoagulant or other medication without appropriate medical advice.
If you think you or somebody else may be having a stroke, call 999 immediately.
Read the full Stroke Health Fitness Medical and Fitness Disclaimer .
Do what you reasonably can to protect your future — then remember to live it.
Prevention matters. So do confidence, family, work, exercise, independence and the ordinary experiences that make life worth protecting.
Life after stroke. Moving forward.