Dr. Benjamin Levine: How Exercise Prevents & Reverses Heart Aging
47:53things heart rate and stroke volume stroke volume is the the amount of blood that the heart can pump per beat so the48:19stroke volume and so the stroke volume times the heart rate is the cardiac output now let's look at an elite48:57having a big stroke volume so having a heart that is nice and stretchable and compliant that can relax to a large














