Natural disasters — hurricanes especially, if you live in Florida or anywhere along the Gulf or Atlantic coasts — create real, well-documented spikes in heart attacks, strokes, and cardiac deaths, driven by a combination of physical exertion, stress, disrupted medical care, and environmental hazards. Most of this added risk is preventable with the right preparation, which is exactly what this page is for. I discussed many of these same points on air — you can listen to the full radio interview on WRMF: Hurricane Season Heart Health.
Why Disasters Are Genuinely Hard on Your Heart
- Physical overexertion — the single biggest driver. Chainsaw work, clearing heavy debris, climbing on roofs, and hauling water are strenuous, often unaccustomed physical activities, frequently performed by people who aren't used to that level of exertion, in heat, sometimes with pre-existing heart disease — a well-known recipe for heart attacks in the days after a storm.
- Acute stress — the emotional and physiological stress of a major storm measurably raises blood pressure, heart rate, and stress hormones, which can trigger cardiac events even without physical exertion.
- Disrupted medication access — pharmacies closed, prescriptions left behind during evacuation, or medications lost to flooding all interrupt treatment for blood pressure, heart failure, and rhythm conditions at exactly the wrong time.
- Heat exposure without air conditioning — power outages in Florida's heat and humidity are a genuine cardiovascular stress, especially for older adults and anyone with heart failure or hypertension.
- Carbon monoxide poisoning — from generators run indoors, in garages, or too close to windows — is a major, entirely preventable cause of death and hospitalization after hurricanes, and it can mimic or worsen cardiac symptoms.
Before the Storm: Preparation Checklist
- Fill prescriptions early, and ask your pharmacy about a 2–4 week emergency supply if your insurance allows it during hurricane season
- Keep a written, current medication list (names, doses, and your prescribing doctors), in your go-bag and saved on your phone, in case you need care from an unfamiliar provider or ER
- Have a battery backup or portable power source for any medical device you depend on — CPAP machines, home oxygen, and other equipment need power even during an outage
- Plan cold storage for refrigerated medications (insulin and some biologics) — a small cooler and ice packs, identified and ready before the storm
- Charge a portable blood pressure cuff or have spare batteries if you monitor your blood pressure at home
- If you have an LVAD, pacemaker, or ICD: know your device settings, keep your device ID card accessible, confirm your equipment bag (batteries, controller, backup power) is fully stocked well before storm season, and know your LVAD program's specific disaster plan (see What Is an LVAD? and Living with a Pacemaker or ICD)
- If you're a heart transplant recipient, keep an extra supply of your anti-rejection medications on hand specifically for disaster season, since a missed dose is a genuinely serious problem (see Transplant Anti-Rejection Medications)
During and Immediately After the Storm
- Pace yourself during cleanup — take frequent breaks, avoid the hottest part of the day, ask for help with heavy lifting and chainsaw work, and stop immediately at any chest discomfort, unusual shortness of breath, or lightheadedness
- Never run a generator indoors, in a garage, or near windows or doors — carbon monoxide poisoning after storms kills people every hurricane season, and it is entirely preventable with generator placement alone
- Stay hydrated, even without air conditioning, and rest in the coolest available space during the hottest parts of the day
- Don't skip medications even if your routine is disrupted — missing blood pressure or heart failure medications for several days can genuinely destabilize a previously well-controlled condition
- Watch for swelling, weight gain, or shortness of breath if you have heart failure — these can escalate quickly without your usual monitoring routine and medication timing
After the Storm: The Recovery Period Matters Too
The elevated risk period doesn't end when the storm passes — cardiac events, particularly related to cleanup exertion and prolonged stress, remain elevated for days to weeks afterward. Don't hesitate to seek care even if local hospitals and clinics are stressed or operating differently than usual; a delayed heart attack or stroke evaluation is far more dangerous than a busy waiting room.
Living With It
None of this is meant to create fear about a storm you likely can't avoid living through if you're in a hurricane-prone area — it's meant to make the preparation concrete and specific enough that it's actually protective. The people who fare best afterward are consistently the ones who prepared their medications, paced their physical exertion, and didn't hesitate to seek care when something felt wrong.
When to Call Your Doctor vs. Go to the ER
Call your doctor if: you've missed several days of medication and need guidance on restarting, or you have mild swelling or fatigue during recovery cleanup. Go to the ER if: you have chest pain, pressure, or discomfort; sudden severe shortness of breath; signs of stroke; or any symptoms of carbon monoxide exposure (headache, dizziness, nausea, confusion) near a running generator.
Common Questions
Is it really true that heart attacks increase after hurricanes?
Yes — this is a well-documented pattern in the medical literature, driven mainly by physical overexertion during cleanup and acute stress, not something you have to just accept as inevitable.
What's the single most important thing I can do to prepare?
Fill your prescriptions early and keep a written medication list — medication interruption is one of the most common, and most preventable, contributors to post-storm cardiac problems.
Is it safe to help with cleanup if I have heart disease?
Pace yourself, avoid the heaviest and most strenuous tasks (chainsaw work, roof work, hauling heavy debris), take frequent breaks, and stop immediately at any warning symptom — asking someone else to handle the most strenuous parts is a reasonable and smart choice, not an overreaction.
Where can I hear more of what you discussed on this topic?
The full conversation is available here: Hurricane Season Heart Health — WRMF radio interview.