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WEIGHT MANAGEMENT BASICS #24: #7 THE HEART MUSCLE- The most important muscle in the body is the Heart Muscle. It pumps blood around the body 60 to 100 times each minute, 100,000 times each day, and 2.5 billion times over 70 years of life. The heart muscle is twisted around four chambers: two called atria fill with blood from the veins(the right atrium coming from the lungs carries oxygenated blood while the left atrium fills with blood from the body with low oxygen having delivered oxygen to the body); and two more muscular chambers called ventricles push blood to the lungs to gather oxygen or to the brain and all your organs to deliver oxygen to all your cells. The heart muscles contract with a rhythm controlled by nerves within the muscle and two time-keeping nerve bundles called the SA (sinoatrial) and AV (atrioventricular) nodes. The EKG detects this rhythmic electrical activity which we hear as heart beats through electrodes placed on your chest, arms,and legs. The heart is the only organ that pumps its own blood supply through coronary arteries. Every part of the heart is supplied by at least two such blood vessels. If the oxygen level drops in an area between blood vessels, then new blood vessels form. When you do aerobic exercise you not only build the heart muscle, you grow new tiny blood vessels as you condition your heart. In the next post, I will discuss High Intensity Interval Training (HIIT), which builds the heart and burns more body fat than typical aerobic exercise, so stay tuned! #drdavidheber #heart #execise to learn more go to www.drdavidheber.com. www.herbalifenutritioninstitute.com and read PERSONALIZED NUTRITION AND TRANSFORMATION available as an e-book for $5.49

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Categories: Nutrition

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