If your goal is to lose weight [1], especially stubborn belly fat, here's a high-intensity interval training (HIIT) workout [2] that only takes 30 minutes.

It alternates between sprinting [3] and walking [4], so it's simple to follow but also super intense. You'll definitely feel like you got in a good workout! If you keep up with this run three to four times a week, you'll absolutely see results!

The Workout

Directions: Warm up for five minutes [5]. Then repeat the below combination 15 times.

• Sprint for one minute
• Walk for one minute

Yep, it's that simple! For the sprint [6] interval, push yourself for the entire 60 seconds to run at a pace that makes you huff and puff, around seven to nine mph. Then you have 60 seconds to recover.