HIIT stands for High-Intensity Interval Training. This fitness approach alternates between short bursts of intense exercise and rest or low-intensity periods. HIIT is highly effective for improving aerobic capacity and burning calories in a shorter timeframe compared to traditional steady-state cardio. The incorporation of varied exercises keeps workouts engaging and efficient, often leading to increased motivation. Additionally, HIIT has been found to enhance metabolic rate long after workouts have ended, making it a favored training style among individuals aiming for weight loss or cardiovascular improvements.