This flat-belly workout will tone your abs from all directions, making for a tighter, stronger core.  We mix ab toning moves with cardio bursts and full-body core exercises to tone your midsection.  Press play and get ready to feel the burn.

This full-body, high-intensity interval training (HIIT) workout will torch calories and fat while strengthening your entire body.  You push it for 40 seconds and get 20 to rest.  Good news;  it's only 20 minutes long and requires no equipment.  Just press play, and hit it!

If you only have 20 minutes to exercise, then we highly suggest that this is the workout you choose.  Trainer Yumi Lee of Reebok CrossFit Lab will take you through an intense kettlebell workout that will not only work every part of your body, but is also sure to get your heart beating quickly too.  Think of it as your go-to for building muscles and burning calories, all in one shot.

For this workout, Yumi suggests using a kettlebell that weighs 20 pounds or less.

Strength training is key to living a fit life, and we are here to help you master the fundamentals.  This is a 15-minute workout we designed for beginners, but anyone will benefit from this full-body sweat session.  We will teach you the moves and the modifications you need to build strength and great form.  Best of all, you don't need any fancy equipment for this workout, just a sturdy chair.  Press play, and let's get started!

Not into running?  No worries.  We've got you covered for cardio.  This 20-minute workout will get your heart rate up, and you don't even need to leave the house.  You don't require any equipment, so press play, and get at it!