Exercise intensity significantly impacts fat loss. Higher intensity workouts, such as high-intensity interval training (HIIT), increase caloric burn during and after exercise due to the afterburn effect (EPOC). This occurs as the body continues to consume oxygen to return to its resting state. Conversely, moderate-intensity activities promote gradual fat loss but require longer durations to achieve similar results. The balance between intensity and duration will depend on individual fitness levels, preferences, and overall goals, determining the effectiveness of fat loss strategies.