HIIT workouts aren’t just convenient – they also have loads of amazing benefits. Check out the list below. 2. Keep burning calories after your workout . HIIT workouts send your body into overdrive, which means you keep burning calories even after you’ve stopped exercising. Bonus! 3. Good for your heart. Pushing yourself to exercise until your heart rate increases is good for heart health and promotes healthy circulation. 4. Boost your metabolism. Because HIIT uses more oxygen than regular workouts, it boosts your metabolism – ideal if you’re trying to lose weight. 5. Easy to stick to. Short, simple workouts are much easier to stick to than complex training plans. It’s much easier to stay motivated when you can workout anywhere, and with HIIT, you can. 1. Increase your endurance. If you take part in another sport, like running or cycling, there’s a good chance you’ll notice an increase in your endurance after completing HIIT workouts.