Cardiologist Dr. Sunil Rao answers your questions about the heart from Twitter. How do you measure your maximum heart rate? Is broken heart syndrome real? What is cholesterol? Can low dose aspirin help prevent heart attacks? Answers to these questions and many more await—it's Heart Support.

Director: Lisandro Perez-Rey
Director of Photography: Constantine Economides
Editor: Richard Trammell
Expert: Dr. Sunil Rao
Line Producer: Joseph Buscemi
Associate Producer: Paul Gulyas; Brandon White
Production Manager: Peter Brunette
Casting Producer: Nicholas Sawyer
Camera Operator: Anne Marie Halovanic
Sound Mixer: Sean Paulsen
Production Assistant: Noah Bierbrier
Post Production Supervisor: Christian Olguin
Post Production Coordinator: Ian Bryant
Supervising Editor: Doug Larsen
Additional Editor: Paul Tael
Assistant Editor: Billy Ward

00:00 Heart Support
00:10 What heart rate is too high?
00:52 Why does the heart "skip a beat?"
01:38 How do EKGs work?
02:47 Can you hear a heartbeat without stethoscope?
03:04 Can you restart the heart with a defibrillator?
03:47 Is broken heart syndrome a real thing?
04:16 What happened to Damar Hamlin?
04:54 Why is resting heart rate still fast in those who exercise regularly?
05:39 What are signs of a heart attack?
06:29 Does low dose aspirin help prevent heart attacks?
07:16 What should I eat for breakfast?
08:18 How does COVID affect the heart?
08:39 What is less risky: stents or bypass surgery?
10:03 What is cholesterol?
10:52 How does the human heart do its thing?
11:41 How does HRV impact our health?
12:34 What is a heart murmur?
13:12 How do pace makers work?
13:56 How do genetics influence risk of heart disease?
14:42 Is there a correlation between gum health and heart health?
15:02 What diet is best for reversing heart disease?
15:27 How do alcohol and cigarettes affect the heart?
16:10 Why is high blood pressure during exercise a good thing?
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