But some claim that the trending "Zone 2" training, commonly known as the "fat-burning zone," offers just that. "Zone training is generally defined by someone's proximity to their maximum heart ...

Zone 2 cardio is the latest exercise trend, and it's based on the longstanding notion that keeping your heart rate within a specific range can help you get more out of a workout. Here's how Zone ...

But some claim that the trending “Zone 2” training, commonly known as the “fat-burning zone,” offers just that. What is this form of exercise — and can it work for anyone? “Zone ...