Evidence has shown that exercising, an act of stretching helps the lymph fluid move throughout the lymphatic system, thereby decreasing swelling, releasing blockage, and promoting a healthy movement of nutrients and waste. The MD, an assistant professor and medical director of the Center for Hyperbaric Medicine, Wound, and Lymphedema Care at McGovern Medical School at UTHealth in Houston, TX, Dr Joseph Nevarez was of the opinion that the lymphatic system - which is a network of tissues and organs - circulates protein-rich lymph fluid throughout the body, clearing it of infection and waste, which are filtered out by white blood cells at lymph nodes throughout the body. Thus, drinking water, eating healthily, avoiding pollutants, managing stress, and exercising are the key components of maintaining a healthy lymphatic system. It goes without saying that incorporating exercise into routine daily activities such as walking to, from, and during work, using stairs, and carrying groceries can go a long way in boosting your immunity by ensuring your overall wellbeing. You can do such exercises as deep abdominal breathing, aerobic exercises that promote increased range in motion, light resistance training that facilitates circulatory pumping, and flexibility boosting stretches. All these forms of exercise can help boost your immune system.