Resting heart rate has long been considered a critical health metric that can predict if you're vulnerable to heart attack, stroke and lung disease. The lower the score, the fitter you are said ...

Pretty much every fitness tracker and smartwatch has an optical heart rate sensor, but they're not always perfectly accurate.

Fitbit introduced Cardio Load and Target Load with the Pixel Watch 3, and the metrics are now rolling out to the Pixel ...

It turns out that blood pressure and your resting heart rate both often change over time ― average scores for both differ by age. The same goes for your physical fitness. There’s an “ideal ...