I need you to write a research article. It should be an article/essay based on current research and scientific state. The topic is about aging but suggest a corner like aging and sarcopenia (cause aging is such a broad topic and wont fit all in my paper!). It should be 6-8 pages. Discussing the disease(aging) cause this and that and now exersice cause this improvement or better management or that prevention. Both should be scientifically discussed at the level of molecular, cellular and whole body. With exact state of conclusion. Dont mention anything about the prevention by drugs. Im strictly only interesed in effects of exercise on disease. And molecular and cellular processes should be discussed by advanced scientific details, means that you have to have a background in kinesiology and physiology of the body! samples are available upon request.