Every 40 seconds, someone in the U.S. has a heart attack. It’s one of the most feared medical emergencies—and one of the most misunderstood. In this episode, we cover exactly what a heart attack is, what’s happening inside the arteries and the heart muscle, and how to recognize the warning signs before it’s too late. We’ll talk about risk factors, from cholesterol and stress to family history and lifestyle—and what you can do today to lower your chances of experiencing one.--In this special 4-part series on heart diseases, we're going to give you something that's getting harder and harder to come by: time with a cardiologist. Access to medical care is a growing challenge—especially when it comes to specialists. In the U.S. today, a single cardiologist may be responsible for thousands of patients, and nearly half of all U.S. counties don’t even have one. We’re joined by Dr. Jaspal Gill, Cardiologist and Clinical Research Fellow at the University of London, to break down the fundamentals of the most common—and most critical—heart conditions: high blood pressure, heart attacks, stroke, and arrhythmia.

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