Just a Few Minutes of Daily Exercise Alters DNA to Help Prevent Chronic Disease

Posted by clnews _Featured_, Exercise Friday, March 16th, 2012

(NaturalNews) Many people think the genes they inherited at birth are static and predetermine their fate for the remainder of their life. Extensive research into the science of epigenetics is providing startling evidence that this thought process is grossly outdated, and our individual DNA is dynamic and continually influenced by multiple lifestyle factors including diet, environment, stress and physical activity.

Researchers publishing the result of a study in the journal Cell Metabolism provide evidence that that when healthy but inactive men and women exercise for a matter of minutes, it produces a rather immediate change to their DNA. While we cannot change our core DNA code, exercise does influence the DNA molecules within our muscles. Scientists have found that DNA is chemically and structurally altered or expressed in very important ways that affect a myriad of metabolic processes that protect us from chronic disease.

The scientists found that DNA modifications signal precise genetic reprogramming in muscles that determine overall muscle strength as well as structural and metabolic benefits derived from physical activity. Study leader, Dr. Juleen Zierath noted “Our muscles are really plastic … muscle adapts to what you do. If you don’t use it, you lose it, and this is one of the mechanisms that allows that to happen.”

Short bursts of moderate intensity exercise positively influences DNA expression

Epigenetic modifications involve the addition or deletion of chemical markers on the DNA strand that change rapidly based on environmental influences such as the nutritional composition of your last meal, pollutants in the environment or the intensity of an exercise workout. Researchers found that DNA within skeletal muscle examined after a short burst of exercise bore fewer chemical markers (specifically methyl groups) than it did before exercise.