HIIT, or High-Intensity Interval Training, involves short bursts of intense exercise followed by recovery periods. This format differs from traditional workouts, which often maintain a steady pace. HIIT can be completed in shorter time frames while still providing significant benefits, such as increased metabolic rate and improved cardiovascular fitness. The intense bursts push the heart rate up, enhancing calorie burn and fat loss. HIIT is adaptable for different fitness levels and can be performed with various exercises, making it a versatile training method.