High-intensity workouts can significantly increase metabolism by promoting a phenomenon called the afterburn effect, or excess post-exercise oxygen consumption (EPOC). Following high-intensity exercise, the body continues to burn calories as it restores itself to pre-exercise levels, aiding in weight management. These workouts also enhance muscular and cardiovascular endurance and improve the efficiency of energy pathways. Incorporating high-intensity intervals into a fitness program can lead to more effective and time-efficient workouts, boosting overall caloric expenditure.