Physical activity is essential in combating obesity, with certain exercises proving especially effective for burning calories and promoting fat loss. High-intensity interval training (HIIT), for example, combines short bursts of intense exercise with recovery periods, boosting metabolism and burning calories even post-workout. Cardio exercises like running, cycling, and swimming engage large muscle groups, helping to improve cardiovascular health while reducing body fat. Strength training, including weightlifting, increases muscle mass, which can raise the resting metabolic rate, enabling more calories to be burned at rest. Consistency in these exercises, along with proper diet, can accelerate weight loss and enhance overall fitness.