Built on clinical trust.
Every explanation on Pulse is reviewed by practicing cardiologists and validated against current ACC/AHA guidelines.
American Heart Association
47 board-certified cardiologists
Recommended to patients daily
4.9 / 5 across 12,400 reviews
Live review cycle · Updated February 2026
Your heart condition, finally explained in words you'll remember.
Triple bypass. Ejection fraction. Stenosis. We translate the terrifying language of cardiology into clear, visual explanations — the night before a procedure, the morning after a diagnosis, or 2 a.m. with discharge papers in hand.
12,400+ patients understood their condition last month
Medical jargon on the left. Human understanding on the right.
Every scroll is a translation. We take the words that made your stomach drop and replace them with ones that let you breathe again.
Coronary Artery Disease — Atherosclerosis
What is plaque in your arteries?
Think of your coronary arteries as garden hoses carrying blood to your heart. Over years, a waxy substance called plaque — made of cholesterol and other materials — slowly builds up on the inner walls.
Wide open, blood flows freely
30% narrowed — no symptoms yet
70% narrowed — chest pain on exertion
When plaque narrows the artery by 70% or more, your heart doesn't get enough blood during exertion — this causes chest pain (angina).
Tap your diagnosis. Get instant clarity.
From atrial fibrillation to triple bypass — each condition comes with visual guides, procedure walkthroughs, and medication explainers written for patients, not physicians.
Select a region
Tap any region to highlight that condition
Atrial Fibrillation
An irregular, often rapid heart rate that can increase your risk of stroke and heart failure.
Coronary Artery Disease
Plaque buildup in the arteries that supply blood to your heart muscle.
Heart Failure
Your heart muscle doesn't pump blood as well as it should. Explained simply.
Post-Stent Recovery
Day-by-day guide for the week after your stent placement procedure.
Bypass Surgery
Triple or quadruple bypass — what the surgeon does, and what recovery looks like week by week.
Valve Disease
Stenosis or regurgitation of the aortic or mitral valve — explained with diagrams.
No account required · Instant access
Loved by patients. Trusted by cardiologists.
"I was handed discharge papers at 11 p.m. after my stent placement and had no idea what any of it meant. I found Pulse at 2 a.m. and by 3 a.m. I finally understood what had just happened to my body."
Robert Callahan
Post-stent patient, Houston TX
Coronary Artery Disease"My father was diagnosed with atrial fibrillation and I was his only family nearby. I sat in the hospital parking lot for an hour reading Pulse on my phone. It was the first time I felt like I could actually help him ask the right questions."
Priya Nair
Caregiver, daughter of AFib patient
Dr. Marcus Webb
MD, FACCInterventional Cardiologist, Cleveland Clinic
"I recommend Pulse to every patient before a catheterization. A patient who understands their anatomy asks better questions, gives better consent, and recovers with less anxiety. This is the resource I've been wishing existed for fifteen years."
94%
of patients felt less anxious after reading their condition guide
12,400+
patients used Pulse the night before a procedure in 2025
300+
cardiologists actively recommend Pulse to their patients
4.9 / 5
average patient satisfaction rating across all condition guides
You deserve to understand what's happening.
Choose your path. No account required for the condition library. The checklist takes 30 seconds.
Find Your Condition
Tap a heart diagram to identify your diagnosis. Instantly receive a curated library of visual guides, procedure walkthroughs, and medication explainers — written for you, not your doctor.
- 47 cardiac conditions explained visually
- Procedure walkthroughs with step-by-step diagrams
- Medication guides with plain-language side effect explanations
- No account, no email, instant access
Free · No account required
Download the Pre-Procedure Checklist
A one-page checklist tailored to your specific procedure — what to bring, what to stop eating, what medications to pause, and which questions to ask your cardiologist.
This checklist is educational, not medical advice. Always follow your cardiologist's specific instructions.