Aging Backwards : 10 Years Lighter and 10 Years Younger in 30 Minutes a Day (9780062313355) by Esmonde-White Miranda

Author:Esmonde-White, Miranda
Language: eng
Format: epub
Publisher: HarperCollins

CARDIOVASCULAR SYSTEM

The heart is our most important muscle; we must protect it at all costs. The muscular system has a very important role to play in keeping the cardiovascular system fit and functioning at full capability. The muscular system is designed to work in harmony with the heart, veins, and arteries, helping to improve circulation and reducing some of our cardiovascular workload. When the heart’s workload is reduced, wear and tear on important parts of the cardiovascular system is reduced, and damage that can trigger inflammation and heart disease is prevented.

Muscles have a direct role in the efficiency of the circulation of blood throughout our bodies. Active muscles are designed to perform as pumps, helping the blood circulate. The pumping action of the muscles takes some of the load off the vessels, which otherwise would have to do all the pumping and delivery of blood alone. When the vessels have to do the pumping by themselves, they cannot do as effective a job as when the muscles are helping them. This means that some cells are not receiving nutrient- and oxygen-loaded blood, and so we are prone to illness and chronic tiredness—the feeling that we are dragging all day and can never get caught up on sleep. Sound familiar?

First and foremost, we need active muscles delivering nutrients and removing waste products to help us stay young. The circulatory system is the system that delivers blood to the entire body—as I sometimes say, “from brain to brawn.” The circulatory system delivers nutrient-loaded oxygen-rich blood to every cell in the body and, on its return journey, acts as a garbage removal system, retrieving dead cells, toxins, and waste products. A slow sluggish circulatory system means that our cells are not receiving life-giving nutrients, nor are the poisonous toxins being flushed out of our system. This leaves us feeling and looking exhausted: Dull, lifeless skin is a giveaway for a sluggish circulatory system.

Recent research reported in the New York Times found that this cleansing effect is not the only reason our skin looks so great when we exercise. The preliminary study from researchers at McMaster University in Ontario, presented in 2014 at the annual meeting of the American Medical Society for Sports Medicine, followed a group of sedentary men and women over 65 to study the effect their exercise habits had on their skin. The researchers had this formerly sedentary group work out vigorously (at 65 percent of the subjects’ maximum heart rate) for 30 minutes twice a week for 3 months. When the researchers analyzed biopsies from the subjects’ skin, they discovered that the skin had changed dramatically, and more closely resembled that of people in their twenties. The researchers believe that exercise triggers the release of myokines, a type of protein released by the muscle; the myokines would travel from the muscle through the bloodstream and initiate changes in cells far away from the cells where they were released. The skin samples indicated that the levels of myokines actually leaped up by 50 percent after the start of the study.

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