Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...

Of all the metrics that wearables track, resting heart rate (RHR) is an easy one to gloss over. It’s not as sexy as VO2 max, ...

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 ...