Stroke remained a leading cause of death last year, ranking third nationally and responsible for roughly 10 per cent of deaths in 2025. As Brain Attack Awareness Week draws attention to the condition, clinicians and health advocates are urging Canadians to prioritise prevention and to act without delay when symptoms arise.
Why time matters
A stroke occurs when blood flow to part of the brain is interrupted, either by a clot (ischemic stroke) or by bleeding in the brain (hemorrhagic stroke). When brain tissue is deprived of oxygen, cells begin to die quickly, potentially leaving survivors with lasting disabilities ranging from paralysis to problems with speech, swallowing, cognition and mood.
Every minute is critical. The first hour after symptoms appear is often referred to as the "golden hour", and there are clot-dissolving treatments for some patients with ischemic stroke that must be given within 4.5 hours of symptom onset. Certain specialised interventions may help selected patients outside that window, but clinicians stress: do not wait to see if symptoms resolve on their own. Immediate emergency care can be lifesaving and limit disability.
Recognize the signs: BE FAST
Quick recognition of stroke signs and prompt contact with emergency services can change outcomes. A simple mnemonic can help people remember what to watch for:
- Balance loss
- Eye blurring or sudden vision changes
- Face drooping
- Arm weakness
- Speech difficulty
- Time to call emergency services
"BE FAST: Balance, Eye blurring, Face drooping, Arm weakness, Speech difficulty, and Time to call emergency services."
Prevention starts with managing risk
While rapid treatment matters, many strokes can be prevented by addressing established risk factors before an emergency occurs. Chief among these is hypertension, a condition often called a "silent killer" because it can damage blood vessels without producing obvious symptoms. Public-health authorities warn that people with high blood pressure face a substantially higher risk of stroke than those with normal blood pressure.
Other commonly recognised contributors to stroke risk include smoking, diabetes, unhealthy diet, physical inactivity and certain cardiac conditions. Managing these factors through lifestyle changes and medical care can substantially reduce the likelihood of a first or recurrent stroke.
Practical steps for Canadians
Clinicians and health educators suggest straightforward actions that individuals can take now to lower stroke risk and ensure a rapid response if symptoms occur:
- Know your blood-pressure numbers and follow treatment plans if diagnosed with hypertension.
- Adopt a heart-healthy diet and stay physically active to reduce vascular risk.
- Quit smoking and limit alcohol intake.
- Learn and share the BE FAST signs with family, friends and caregivers.
- Call emergency services immediately if stroke symptoms appear — do not wait to see if they improve.
| Stroke type | Treatment window cited |
|---|---|
| Ischemic (blocked blood vessel) | Up to 4.5 hours for some clot-busting medicines |
| Hemorrhagic (bleeding) | Higher early mortality risk; immediate care essential |
Brain Attack Awareness Week is an annual opportunity to refresh knowledge about signs, treatment timelines and prevention. For individuals and families, the practical message is clear: controlling blood pressure and other risks reduces the chance of stroke, and knowing BE FAST plus calling emergency services immediately can save lives and preserve quality of life for survivors.
Consult your health-care provider for personal medical advice, diagnosis and treatment tailored to your circumstances.
