To increase calorie burn efficiently, high-intensity interval training (HIIT) is effective. This involves short bursts of maximum effort followed by brief rest periods. This method boosts heart rate and raises metabolism post-exercise, leading to increased calorie expenditure. Additionally, incorporating activities like strength training can enhance muscle mass, further increasing daily calorie burning. Combining both HIIT and strength training offers optimal results in a shorter workout duration, making it practical for those with limited time. Regularly varying workout routines can also prevent plateaus and maintain high levels of engagement.