Heart & Health
Evidence-based Preventive Cardiology
Your heart responds to more than a prescription.
I'm an interventional cardiac electrophysiologist who has spent two decades treating arrhythmias in the Cardiac CatheterizationLaboratory and Four decades doing Clinical Medicine treating hundreds of patients — and three decades studying what the yogic tradition adds to modern heart care. This is where the evidence for both lives.
I implant pacemakers and defibrillators and ablate complex arrhythmias for a living. I directed cardiac electrophysiology laboratories, performed some of the world’s first procedures and taught cardiology and at universities and medical schools’ I also authored the American Heart Association's first scientific statement on meditation and cardiovascular risk, and edited the world’s first and the second medical reference text on yoga and its use in cardiovascular medicine for physicians. I say this for one reason: when I tell you that breath, movement, and meditation matter to your heart, it isn't instead of medicine. It's a cardiologist holding those practices to the same evidence I demand of the devices I implant. 1. Lead author, Meditation and Cardiovascular Risk Reduction — a scientific statement of the American Heart Association (2017) 2. Editor-in-Chief, The Principles and Practice of Yoga in Cardiovascular Medicine (Springer Nature, 2022) 3. 100+ peer-reviewed publications; WHO advisor on yoga for metabolic disease 4. Trained at Baylor/Texas Heart Institute, Tulane, and Harvard/Massachusetts General Hospital
Modern cardiology is extraordinary at rescue. Stents open arteries in an emergency; ablation stops a dangerous rhythm; devices restart a failing heart. I perform these procedures, and they save lives. But most cardiovascular disease isn't built in the emergency. It's built quietly, over decades — by blood pressure, by chronic stress physiology, by metabolism and inflammation and poor sleep. Those are exactly the levers that breath, movement, and meditation reach. The tradition I was raised in described this as working with the breath and the nervous system. Modern trials now measure the same thing as autonomic balance, vagal tone, and heart-rate variability. My work, for most of my career, has been to bring those two languages into one room — and to refuse to let either one off the evidentiary hook.
I'll be precise here, because precision is the point. These practices are adjuncts to guideline-directed care — not replacements for it. Within that boundary, the evidence is real and growing. Blood pressure Yoga and slow, paced breathing produce measurable reductions in blood pressure across randomized trials. The effect is modest but clinically meaningful — enough to matter in early-stage hypertension and as an add-on to medication. It does not replace antihypertensives where they're indicated. Stress and heart-rate variability Meditation and yoga shift the autonomic nervous system toward parasympathetic ("vagal") dominance, which shows up objectively as improved heart-rate variability — a marker tied to better long-term cardiovascular outcomes. My own network meta-analysis compared yoga against resistance and aerobic training on exactly this measure. Atrial fibrillation and arrhythmia For patients living with atrial fibrillation, structured yoga has reduced symptomatic episodes and lowered heart rate and blood pressure in controlled studies, while improving quality of life — again, as an adjunct alongside proper rhythm management and anticoagulation, never in place of them. Recovery after a cardiac event The evidence for yoga-based practice in cardiac rehabilitation after coronary events is maturing, including systematic reviews from my own group. The value here is in recovery, mood, and — critically — adherence: patients stay with programs they can actually tolerate. Weight and metabolism after 40 After midlife, the metabolic terrain shifts, and that terrain drives cardiovascular risk. Yoga is a poor calorie-burner and I won't pretend otherwise. Its real leverage is upstream: stress and cortisol, sleep, appetite regulation, insulin sensitivity, and movement you'll sustain for years rather than weeks. That's the argument I make at book length in Weight Loss for Seniors. The through-line: where the data are strong, I say so. Where they're still preliminary, I say that too. You deserve a cardiologist, not a cheerleader.
Three commitments underneath everything on this side of the site:
1. Standard care first. Nothing here asks you to stop a proven treatment. If anything, it asks you to add to it.
2. Traceable to evidence. Every recommendation points back to trials, meta-analyses, or mechanism — much of it published, much of it my own.
3. Sustainable in a real life. A practice you abandon in three weeks helps no one. The best intervention is the one you'll still be doing in three years.