Photo by Justin Singh

Running’s a great workout and can provide a real natural high, but sometimes the intensity if just too much. And while running burns around two and a half times the calories, walking is a solid lower-impact alternative. (And they’re both better than sitting around watching reality show reruns.) Regular cardio at any speed can promote cardiovascular fitness, so mix walking and running throughout the week for a plan to fit any mood and schedule. Want a tougher walk? Add ankle and hand weights to up the intensity.

The Takeaway: Mix walking and running for a cardio workout to suit any mood or schedule.

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