This article was originally featured on The Conversation. Your heart beats around 100,000 times every day. Heart rate is a key marker of cardiovascular activity and an important vital sign. But your ...

Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, ...

If you wear a fitness tracker, you've likely seen a stat labeled "HRV" pop up on your screen. But what does it mean, and does it matter? Short for heart rate variability, HRV has become a popular ...

Your heart beats around 100,000 times every day. Heart rate is a key marker of cardiovascular activity and an important vital sign. But your pulse is not as steady as a precision clock – nor would you ...

The rhythmic beating of your heart tells a more complex story than most realize. While standard health assessments typically focus on heart rate, the subtle variations between individual heartbeats ...

Stress is a normal part of life and your body is designed to react to it. According to the American Psychological Association, your body is well-equipped to handle small increases in stress levels, ...

NEW YORK (Reuters Health) - Willpower is a lot like muscle strength, a new study suggests -- some of us have more of it than others. And while people may be born with an innate capacity for ...

Add Yahoo as a preferred source to see more of our stories on Google. If you wear a fitness tracker, you’ve likely seen a stat labeled “HRV” pop up on your screen. But what does it mean, and does it ...