The Educated Patient Podcast: Why Stroke Prevention Starts Now

In this American Heart Month episode of The Educated Patient Podcast, host Mike DeMarco sits down with Shyam Prabhakaran, M.D., M.S., chair of the writing group for the American Heart Association/American Stroke Association Acute Ischemic Stroke Guideline and chair of neurology at University of Chicago Medicine. The conversation centers on the powerful connection between heart health and brain health, and why stroke prevention is something everyone should care about.

Prabhakaran explains that the heart and brain are deeply interconnected. About 20% to 25% of the blood pumped by the heart goes directly to the brain. When heart function is disrupted, whether by high blood pressure, atrial fibrillation (AFib) or blocked arteries, the brain is often the organ that suffers. Stroke, he emphasizes, is fundamentally a blood flow problem: either a blockage (ischemic stroke) or bleeding (hemorrhagic stroke) in the brain.

One of the key takeaways from the episode is that stroke is often preventable. While it can appear sudden, stroke risk builds silently over decades. High blood pressure, elevated cholesterol, diabetes or prediabetes, AFib, poor sleep, inactivity and unhealthy diet all contribute to long-term risk. Prabhakaran encourages listeners to “know their numbers,” especially blood pressure, cholesterol and blood sugar, and to take prediabetes seriously. Damage can begin even before full diabetes develops.

The episode also highlights the FAST acronym (Face drooping, Arm weakness, Speech difficulty, Time to call 911) as a lifesaving tool. Prabhakaran strongly cautions against driving someone to the hospital during a suspected stroke. Calling 911 ensures faster transport, medical monitoring en route and advance hospital notification, all of which can dramatically improve outcomes.

A significant portion of the discussion focuses on AFib, a common heart rhythm disorder that can silently increase stroke risk. Because AFib can cause blood clots to form in the heart and travel to the brain, appropriate monitoring and blood-thinning medications can be critical preventive steps.

The conversation then shifts to recovery. Stroke is often an identity-shifting event, and rehabilitation is a lifelong journey. Prabhakaran describes the brain’s remarkable ability to “rewire” itself through neuroplasticity. Physical therapy, speech therapy, cognitive stimulation, social engagement and strong caregiver support all play essential roles in recovery.

Looking ahead, he expresses optimism about the future of stroke medicine, including advances in clot retrieval, new blood thinners, AI-driven tools and even emerging brain-computer interface technologies that may one day help restore lost function.

His closing message for Heart Health Month is simple but powerful: know your risk factors, control what you can, live a heart- and brain-healthy lifestyle, and act fast if symptoms appear. Up to 80% of strokes are preventable, and that’s a statistic patients can act on.