Weight management is a process which could help you to maintain a healthy body weight that involves adopting long-term lifestyle modifications..Physical exercise is a body activity that improves or maintains medical fitness and overall health and wellness. Obesity management includes surgery or medications, lifestyle changes and the main treatment for obesity consist of dieting and physical exercise. Frequent and regular physical exercise boosts the immune system and improves prevent the diseases of affluence such as cardiovascular disease, diabetes, heart diseases, lung disease, and obesity. The Role of Exercise and Physical Activity in Weight Loss and Maintenance will be discussed in this session.