In this era of fitness trackers, we have easy access to our heart rate at any given moment. Every so often, a number catches your eye as it flashes on your Garmin or Apple Watch while you're sitting ...

At first glance, normal heart rate appears to be a straightforward metric: It’s a mere count of how many times your heart “beats” or contracts per minute. Though simple to calculate—you just need to ...

The demand for wearable devices for daily health management and tonometry-based pulse wave measurement has grown rapidly. However, the absence of standardized and physiologically realistic evaluation ...

As you grow older, your health issues can increase, and with each new challenge, it becomes more difficult to know what is "normal" and what is not. A new challenge may not feel normal when you're ...