Protecting your brain and reducing the risk of stroke
Your brain controls everything from movement and speech to memory, mood and decision-making. Looking after your brain is just as important as caring for your heart, in fact, the two are closely connected.
Stroke is one of the leading causes of disability and death, but many strokes are preventable. By understanding risk factors and taking proactive steps, you can significantly reduce your risk and support long-term brain health.
What Is a Stroke?
A stroke occurs when blood supply to part of the brain is interrupted. Without oxygen-rich blood, brain cells begin to die within minutes.
There are two main types:
- Ischaemic stroke – caused by a blood clot blocking an artery (most common)
- Haemorrhagic stroke – caused by a blood vessel rupturing and bleeding into the brain
A related condition, known as a TIA (transient ischaemic attack) or “mini-stroke,” involves temporary blockage and is a warning sign that a full stroke could occur in the future.
Stroke is a medical emergency. Immediate treatment greatly improves outcomes.
Recognising the Signs of Stroke
In the UK, the FAST test is widely used:
- Face – Has the face fallen on one side?
- Arms – Can both arms be raised and held there?
- Speech – Is speech slurred or difficult?
- Time – Call emergency services immediately
Other possible symptoms include:
- Sudden severe headache
- Sudden confusion
- Loss of vision
- Dizziness or loss of balance
If stroke is suspected, urgent medical help is critical.
Key Risk Factors for Stroke
Some risk factors cannot be changed:
- Age
- Family history
- Certain medical conditions
However, many major risks are preventable or manageable:
- High blood pressure
- High cholesterol
- Smoking
- Diabetes
- Obesity
- Physical inactivity
- Excess alcohol
- Atrial fibrillation (irregular heart rhythm)
- Chronic stress
High blood pressure is the single biggest modifiable risk factor for stroke.
Steps to Support Brain Health and Reduce Stroke Risk
1. Control Blood Pressure
Keeping blood pressure within a healthy range is crucial. Regular monitoring and following medical advice can significantly reduce stroke risk.
2. Manage Cholesterol
High cholesterol contributes to artery narrowing. Healthy diet, exercise and medication (if prescribed) can help maintain safe levels.
3. Stay Physically Active
Regular exercise improves circulation, lowers blood pressure and supports overall cardiovascular health.
Aim for:
- At least 150 minutes of moderate activity per week
(e.g. brisk walking, swimming, cycling)
Movement supports both heart and brain health.
4. Eat for Brain Health
A balanced diet rich in:
- Vegetables and fruit
- Whole grains
- Lean proteins
- Healthy fats (e.g. olive oil, nuts, fish)
Limiting salt, saturated fats and processed foods helps reduce vascular risk.
5. Maintain a Healthy Weight
Excess weight increases blood pressure and diabetes risk, both of which are linked to stroke.
6. Stop Smoking
Smoking damages blood vessels and significantly increases stroke risk. Stopping smoking is one of the most protective steps you can take.
7. Moderate Alcohol Intake
Excessive alcohol raises blood pressure and increases stroke risk. Staying within recommended limits reduces strain on the brain and blood vessels.
8. Manage Diabetes
If you have diabetes, maintaining stable blood sugar levels reduces long-term vascular damage.
9. Monitor Heart Rhythm
Atrial fibrillation (AF) increases the risk of blood clots forming in the heart, which can travel to the brain. If diagnosed with AF, appropriate treatment is essential.
10. Prioritise Mental and Cognitive Health
Brain health is not only about blood flow — it also includes cognitive wellbeing.
Helpful habits include:
- Staying socially connected
- Challenging your brain with learning or puzzles
- Managing stress
- Getting adequate sleep
Chronic stress and poor sleep can indirectly increase stroke risk by affecting blood pressure and overall health.
Regular Health Checks
Routine health assessments can detect silent risk factors such as high blood pressure or raised cholesterol.
If you are aged 40–74 in the UK, you may be eligible for an NHS Health Check to assess cardiovascular and stroke risk.
Small Changes Make a Difference
Stroke prevention is rarely about one dramatic change. It is about consistent, sustainable improvements over time.
Even modest reductions in blood pressure, weight, or smoking can significantly reduce long-term stroke risk.
Good brain health and stroke prevention are closely linked to overall cardiovascular wellbeing. By managing blood pressure, maintaining healthy habits and seeking regular medical checks, you can actively reduce your risk.
If you are unsure about your stroke risk or have experienced warning signs such as a TIA, speak to your GP promptly. Early intervention can protect both brain function and quality of life for years to come.
Apr26, E&OE
