Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...

View post: The One Workout Mistake Most Guys Make in Their 30s and Pay For in Their 40s, According to a Veteran Trainer Zone 2 cardio rate training means working in one of five heart rate zones at ...

You likely know the importance of zone 2 training—low-intensity miles that are the foundation of distance running plans. The challenge? Finding your personal zone 2 range, and sticking to it. That’s ...