Fitness expert, Charles Harris, has shared his advice on weight training and the importance of avoiding losing 3 to 5% of your body's lean muscle mass over the age of 30, according to Harris. He suggests that lifting weights can significantly increase the body's strength, but also increase the METABOLISM. The author suggests that weight training is the primary method for improving your appearance and body performance. He also shares his advice for the first time on how to maintain this body shape. Harris suggests that working out regularly can increase the comfort factor and result in a significant increase in body tonality. The article also discusses the benefits of working out with Harris' daughter, Dalecia, who has been working out a lot recently.