Many data-driven runners have a grasp on common heart rate metrics, like resting heart rate, maximum heart rate and heart rate zones. But there’s another, often undervalued data point worth keeping ...

We all need a "Zone 2" day -- a low-impact, low-intensity workout -- once in a while. This is especially true for those who find it hard to skip workouts and often push themselves to the extreme.

What you eat before your workout can have a big impact on your energy, exercise performance, and recovery. However, your pre-workout snack should be tailored to the type of exercise you’re engaging in ...