Interval training optimizes workout efficiency by alternating between high-intensity bursts and lower-intensity recovery periods. This method enhances caloric burn during and after workouts, increasing overall metabolic rate. By pushing the body to exert maximum effort in short intervals, interval training improves cardiovascular fitness and decreases workout duration, making it time-efficient. It can also help in breaking through fitness plateaus and building endurance more effectively than steady-state exercises. Incorporating varying intensity levels keeps workouts engaging, motivating individuals to stick with their fitness routines.