Exercise has also been shown to provide protection against your cancer returning. Being physically active on a regular basis is also an important part of a healthy lifestyle. In addition exercise is also a recommended part of treatment and recovery. There are specific benefits of being active while you are undergoing treatment. No only will exercise help you manage some of the side effects that you may experience, it will also help with strength and recovery. Some of the common side effects that exercise can be beneficial for include prevention of weight gain, and reducing lethargy and fatigue. In addition, many women lose muscle mass during their treatment as a result of inactivity and the effects of treatment. Physical activity can also help your body maintain muscle mass, which in turn will help improve strength and preserve your metabolism. Some of the benefits of exercise include improvements in: