The body s second circulation system, the lymphatic system, is an important part of its defense against disease and toxins. Movement of the lymphatic fluid toward the heart is partially dependent on muscular compression of the lymphatic vessels. Exercise is an excellent stress reducer. Stress manifests itself in the form of muscular tension and hormonal imbalances. Exercise releases the tension in muscles and stimulates the hormonal system.
Exercise is a much more effective deterrent to stress than drugs or alcohol.
All this combined with the improved posture and coordination affects your natural body language.