Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate.

The rhythm of a healthy heart may seem steady, but underneath that regular thump lies a rich, ever-changing pattern. These beat-to-beat changes, known as heart rate variability, or HRV, reveal much ...

Heart rate variability (HRV) measures the fluctuations in time between heartbeats. While it isn’t a health metric you need to overthink, HRV is an indicator of how well the body can adapt to and ...

Heart rate variability during sleep can predict stroke, depression or cognitive dysfunction years in advance, according to new research presented at the European Academy of Neurology Congress. The ...

Sleep affects multiple physiological systems; however, a comprehensive overview has not yet been reported. A study published in Nature Medicine analyzed sleep characteristics in adults and their ...

Overview: Top-rated sleep-tracking apps help monitor sleep patterns, optimize rest, and boost daily energy levels for ...

M odern smart watches can measure an array of health indicators. Step counts and heart rates sit at the simpler end, while ...

Tracking key heart health metrics every day helps you understand how your lifestyle affects your cardiovascular system and empowers you to take proactive steps toward better heart health. Heart ...

The latest craze in the fitness world—from gym culture, to nutrition planning, to recovery protocols— is hyper-personalized ...