High-intensity interval training (HIIT) is highly effective for weight loss due to its ability to burn calories in a shorter time compared to traditional workouts. HIIT alternates short bursts of intense exercise with recovery periods, leading to increased metabolic rate even after the workout is finished—this phenomenon is known as afterburn or excess post-exercise oxygen consumption (EPOC). Additionally, HIIT can enhance fat oxidation and improve cardiovascular health. This combination of substantial calorie burning and metabolic boost makes HIIT a popular choice for individuals aiming for rapid weight loss results.