The best Fitbit depends on your budget, intended use case, and need for advanced features in an activity tracker.

To find the best fitness watch for your training needs, read more about my findings ... because the Series 9 accurately tracked my heart rate variability, including how long I spent in certain ...

Understanding your VO2 max can give you powerful insights into your cardiovascular fitness. And you don’t need a lab to find ...

As before, I’ll note I’m running the latest watchOS 11 beta. Whatever is causing these heart rate reading issues, Apple hasn’t fixed it since I started noticing them. Chris Smith has been ...

Researchers have developed a revolutionary new way to find out the 'true age' of your heart using MRI. A new study shows how an MRI scan can reveal your heart's functional age -- and how unhealthy ...

Screening for common genetic variants in addition to rare genetic variants can help improve patient risk stratification for ...

Scientists at the University of East Anglia (UEA) have developed a new way of uncovering the "true age" of a heart using MRI.