30-Minute Pyramid Treadmill Workout

POPSUGAR Photography | Kat Borchart
POPSUGAR Photography | Kat Borchart

Spice up your cardio and push your limits with intervals! This 30-minute treadmill workout plays with speed and changes from minute to minute. And switching speeds like this not only improves your overall running stamina, but it also increases the work your body does to recover when the workout is over.

POPSUGAR Photography | Kat Borchart

As always, feel free to adjust the speed up or down as necessary; just make sure you're challenging yourself. If you're looking to try running intervals but want to start a little slower, try this beginner's interval plan.