Have you heard of ‘zone training’? If not, you’re not alone. Unless you’re really into exercise, the concept might be new to you — but it’s all the rage in the wellness world and could be the key to ...

Zone 2 cardio workouts have gotten a lot of love lately. The second least-intense type of cardio on a scale of 1 to 5, zone 2 involves raising your heart rate only a bit—to 60% or 70% of your max. It ...