https://drjohnday.com/how-to-bulletproof-your-heart-the-roseto-effect/

What Should Your Heart Rate Be?

Renowned cardiologist, Dr. John Day, offers simple changes you can make to have your life – and heart – in rhythm. Most doctors will tell you that there isn’t much you can do to treat atrial fibrillation, aside from taking medications for the rest of your life. Cardiologist and a-fib specialist John D. Day disagrees.