Source: U.S. National Library of Medicine, MedlinePlus
Running and walking are both popular ways to get a great cardio workout. But is a brisk walk really as good an exercise as a sweaty, heart-pounding run?
Source: U.S. National Library of Medicine, MedlinePlus
Running and walking are both popular ways to get a great cardio workout. But is a brisk walk really as good an exercise as a sweaty, heart-pounding run?