If you think someone is having a stroke, call 911 immediately. Do not wait to see if it passes, and do not drive them yourself.
A stroke happens roughly every 40 seconds in the United States. Brain cells die rapidly while one goes untreated, and early treatment is strongly linked to better survival and less long-term disability. Recognising a stroke quickly is one of the few genuinely life-saving things an ordinary person can do.
This page covers the signs the American Stroke Association tells people to look for, what to do, and — honestly — what does and doesn't reduce stroke risk.
Know the Signs: B.E. F.A.S.T.
The American Stroke Association uses the acronym B.E. F.A.S.T. Each letter is a sign that comes on suddenly:
- B — Balance. Sudden loss of balance or coordination, trouble walking, or dizziness.
- E — Eyes. Sudden vision changes — blurred or double vision, or loss of vision in one or both eyes.
- F — Face drooping. One side of the face droops or feels numb. Ask the person to smile and look for an uneven smile.
- A — Arm weakness. One arm or leg is weak or numb, usually on one side. Ask the person to raise both arms and see whether one drifts downward.
- S — Speech difficulty. Speech is slurred or hard to understand, or the person is confused. Ask them to repeat a simple sentence.
- T — Time to call 911. If you see any of these, call immediately.
Other sudden warning signs
- Sudden confusion or trouble understanding what people are saying
- Sudden numbness or weakness of the face, arm or leg — especially on one side of the body
- A sudden severe headache with no known cause
Women may also experience more general symptoms: weakness, disorientation, memory problems, fatigue, or nausea and vomiting. These are easier to dismiss, which is exactly why they're worth knowing about.
A note on the "stick out your tongue" test
You may have seen an email or social post adding a fourth test — asking the person to stick out their tongue and checking whether it's crooked. It circulates widely, but it is not part of any recognised stroke screening tool, and the result is too open to interpretation to be useful. Use B.E. F.A.S.T. instead. We previously included the tongue test on this page and have removed it.
What To Do
- Call 911 straight away. Don't drive the person to hospital yourself — paramedics can begin treatment on the way and alert the hospital before you arrive.
- Note the time the first symptom appeared. Treatment options depend heavily on how long ago the stroke started, and this is one of the first things the medical team will ask.
- Call even if the symptoms go away. Symptoms that resolve may have been a transient ischaemic attack — a "mini-stroke". About 15% of strokes are preceded by one, and a full stroke often follows within days or weeks. A TIA is an emergency warning, not an all-clear.
- Don't give food, drink or medication while waiting for help.
What Actually Reduces Stroke Risk
This section used to carry the heading "prevention without drugs". That framing was wrong and we've removed it, because for a great many people medication is the single most effective part of stroke prevention.
The established risk factors, and what's done about them:
- High blood pressure — the largest modifiable risk factor for stroke. Managed through diet, activity, weight and, for most people who need it, prescribed medication. If you've been prescribed blood pressure medication, taking it is one of the most protective things you can do.
- Atrial fibrillation — an irregular heart rhythm that substantially raises stroke risk. Usually managed with anticoagulants, which dramatically reduce that risk. This is not something lifestyle measures replace.
- Smoking — stopping reduces stroke risk substantially over time.
- High cholesterol and diabetes — both raise risk and both are managed with a combination of lifestyle and, often, medication.
- Physical inactivity, excess weight, heavy alcohol use — all modifiable, all worth addressing.
If you have any of these, the conversation to have is with your doctor. Stroke prevention is one of the areas where modern medicine works extremely well, and the gap between treated and untreated risk is large.
Where Breathing Fits
We sell breathing and oxygen products, so let's be straightforward about this.
Breathing exercises do not prevent strokes, and they do not treat or reverse one. Nothing on this site should be understood as an alternative to medical stroke prevention or emergency care.
What can honestly be said is narrower: chronic stress contributes to high blood pressure, and slow breathing practice is one of several things that help with stress management. That's a small, indirect contribution to one risk factor among many — worth having alongside proper medical care, and no substitute for it. If your blood pressure needs treating, it needs treating.
Does EWOT Help With Stroke?
No. Exercise With Oxygen Therapy is not a treatment for stroke, not a stroke prevention method, and not a recovery therapy. We don't sell it as any of those things.
Stroke rehabilitation is a specialist medical field involving physiotherapy, occupational therapy, speech and language therapy and medical management. If you or someone close to you is recovering from a stroke and wants to add exercise, that's a conversation for the rehabilitation team who know the case.
Frequently Asked Questions
What are the first signs of a stroke?
Sudden balance loss, vision changes, face drooping, arm weakness, or speech difficulty — the B.E. F.A.S.T. signs. Also sudden confusion, sudden numbness on one side, or a sudden severe headache with no known cause. Any one of them means call 911.
Should I call 911 if the symptoms stop?
Yes. Symptoms that resolve may have been a transient ischaemic attack, which is a strong warning that a full stroke may follow within days. It needs urgent assessment, not relief.
Can breathing exercises prevent a stroke?
No. The things that reduce stroke risk are blood pressure control, treatment of atrial fibrillation where present, not smoking, managing cholesterol and diabetes, physical activity and moderate alcohol use. Breathing practice may help with stress, which is one contributor to blood pressure — a small indirect effect, not prevention.
Can oxygen therapy reverse stroke damage?
No. Stroke recovery is driven by medical treatment delivered quickly and by specialist rehabilitation afterwards. Claims that oxygen reverses the effects of a stroke are not supported, and acting on them could cost someone the treatment window that genuinely matters.
Why does time matter so much in a stroke?
Brain cells die rapidly while blood flow is blocked, and the treatments available depend on how soon the person reaches hospital. The time the first symptom appeared is critical information for the medical team — note it and tell them.
A Note on Medical Advice
This article is for general education. It is not medical advice, a diagnosis or a treatment plan. Stroke is a medical emergency. If you suspect one, call 911. If you are managing stroke risk factors such as high blood pressure or atrial fibrillation, follow your doctor's guidance — and never stop or reduce prescribed medication based on anything you read here.
Sources
- American Stroke Association. Stroke Symptoms. stroke.org
- American Stroke Association. B.E. F.A.S.T. materials. stroke.org
