Heart rate variability has become one of the more curious metrics to emerge from the age of wrist-worn running trackers that, if read properly, can be a nifty training insight. HRV is one layer of ...

Heart rate variability (HRV) is the variation in the time between two consecutive heartbeats over a specific period. Doctors may use HRV as an indicator for certain aspects of a person’s health, ...

Monitoring your body provides valuable information on your adaptation to training, your risk of injury or illness, and your readiness for the next hard training session. The right data can help ...

Chronic stress, depression, cardiovascular disease, fragmented sleep, and aging are all associated with a higher risk of dementia, but scientists have not yet discovered exactly why. Now, a review ...