High-intensity exercise can boost the body's metabolism post-workout through a phenomenon known as excess post-exercise oxygen consumption (EPOC). This means the body continues to burn calories at an elevated rate after the workout is completed, contributing to fat loss and improved cardiovascular fitness. The increased demand for restoration of energy, repair of muscle tissues, and regaining of normal body functions leads to this prolonged metabolic elevation. As a result, incorporating high-intensity workouts can be beneficial for enhancing overall fitness levels.