HIIT involves short bursts of intense exercise alternated with low-intensity recovery periods. It's an incredibly time-efficient way to get a great cardio workout. A HIIT session can be as short as 10-20 minutes but can provide the same benefits as a much longer moderate-intensity workout.
Why HIIT is So Effective
HIIT pushes your heart rate up quickly and keeps your metabolism elevated for hours after you finish exercising, a phenomenon known as the 'afterburn effect.' This makes it extremely effective for fat loss. It also improves your body's ability to use oxygen, boosting your overall endurance and athletic performance.