If you’re looking to add some kick to your workout and save time while doing it, it's probably time to try a 15-minute HIIT workout. “HIIT, or high-intensity interval training, essentially means you ...

Get ready to challenge your body with 15 minutes of cardio HIIT from Katie Austin! This session is ideal for when you're recovered and ready to push past your limits. Throughout this quick workout, ...

If you’re looking to add some kick to your workout and save time while doing it, it’s probably time to try a 15-minute HIIT workout. “HIIT, or high-intensity interval training, essentially means you ...

All runners know that cross-training is essential — but forcing themselves to actually do it can be a struggle. That's why we love this circuit led by fitness instructor Ashley Joi. It's actually the ...

In this sixth installment of our cardio series, our fitness instructors Astrid Swan and Ridge Davis punch it up as they lead you through the final workout challenge, complete with half burpees, ...

University of California, San Francisco researchers recently published a 30-year study (Nagata et al., 2021) which found that adhering to the minimum weekly guidelines of 150 minutes (2.5 hours) of ...