Heart rate zones tell you how hard you're working when you're doing cardio (but not strength training). You shouldn't worry too much about them if you're new to exercise, but if you'd like to give ...

Zone 2 training has established itself as a popular concept for endurance athletes, especially runners who want to improve ...

Plus, the 80/20 rule for optimal results ...

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 ...

If you wear a Fitbit, Apple Watch or a similar wearable while working out, you already know that you have a useful tool right at your fingertips. One especially helpful feature wearables like these ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running: Simply don the device, start your workout, and watch those beats per ...