Low-intensity training is great for you, no matter what your fitness-tracking gadget says.

Zone 2 cardio is one of the latest trends in fitness activity that may have you questioning if it is something you should add to your routine. Here's what you'll want to know before you start. It is a ...

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 ...

Noticeable changes in heart rate, like a 6 to 10 percent drift, also signal aerobic decoupling, says Norris. For example, if ...