How to prevent a second stroke
1 in 4 strokes are recurrent. Almost all of them are preventable. Here is the checklist that actually works.
Last reviewed: 2026-07-28
2 min read · 373 words
Medically reviewed by SRA clinical advisory team
The non-negotiables
These are the items where the evidence is overwhelming. Skipping any of them dramatically raises your recurrence risk. Talk to your stroke neurologist about each one.
- Take antiplatelet medication exactly as prescribed (aspirin, clopidogrel, or both)
- Anticoagulation if you have atrial fibrillation (apixaban, rivaroxaban, etc.)
- Blood pressure under 130/80 — measured at home, twice daily
- Statin if prescribed, every single day
- Stop smoking. Stop vaping. Both.
- Treat sleep apnea if you have it (CPAP compliance is non-optional)
- A1C under 7.0 if you have diabetes
The lifestyle stack
These factors compound. Each one cuts recurrence risk by a small amount; together they cut it dramatically.
Mediterranean-style eating reduces stroke risk by roughly 20% in clinical trials. Daily movement (any movement) reduces it further. Limiting alcohol to 1 drink per day for women, 2 for men. Maintaining a healthy weight. Managing stress with daily practice (meditation, breathing, walking, prayer — pick one and do it).
The home monitoring kit
Every stroke survivor should own and use these four items: a validated home blood pressure cuff, a pill organizer with reminders, a pulse oximeter, and a scale. Track BP twice daily. Track weight weekly. Bring the data to every appointment.
If your BP is consistently above target despite medication, that is information your doctor needs. Most second-stroke prevention failures are quiet — uncontrolled hypertension that nobody is measuring at home.
The 90-day window
The 90 days after a stroke are the highest-risk window for recurrence. Be religious about medication, BP measurement, and follow-ups during this period. After 90 days the risk drops substantially but never to zero. The habits you build in the first 90 days are the ones that will protect you for years.
Frequently asked questions
What is the single most important thing to prevent a second stroke?
Blood pressure control, full stop. Hypertension is the largest modifiable risk factor for both first and recurrent strokes. Get it under 130/80 and keep it there.
Do I need to take aspirin forever?
Most ischemic stroke survivors are on lifelong antiplatelet therapy. Never stop without explicit instruction from your stroke neurologist — even for a procedure, get clearance first.
Does exercise prevent a second stroke?
Yes. 150 minutes of moderate aerobic activity per week is the standard recommendation, but even daily walking has measurable cardiovascular benefits.
Can supplements prevent a second stroke?
No supplement has the evidence base of statins, antihypertensives, and antiplatelet therapy. Some (omega-3s, vitamin D if deficient) have modest support. Most are marketing.
Is the risk highest right after the first stroke?
Yes. The first 90 days carry the highest recurrence risk by a wide margin. This is when medication compliance and follow-up matter most.
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