With insights from 3 expert coaches, we explain what Heart Rate Variability means for endurance athletes and how to use HRV ...

A new study suggests your smartwatch could provide a powerful insight into your heart health. Researchers developed a metric ...

Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness ...

The best smart scales on the market track your body composition, heart rate, and BMI, and can show you your progress over time at the click of a button. All of the best smart scales will have a ...

When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is ...

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 ...