Whether due to stress or an intense cardio workout, most of us have felt our heart racing from time to time. A rise in your heart rate can be perfectly normal given outside circumstances. However, ...

Understanding the Context

An abnormal heart rate or a slow heart rate is often a consequence of ageing or an underlying cardiovascular condition. However, if you are fit and young, it becomes twice as necessary to be ... MSN: Your Heart's Silent Whisper: Resting Heart Rate by Age and Fitness Level Whats Normal for You? Your Heart's Silent Whisper: Resting Heart Rate by Age and Fitness Level Whats Normal for You?

Key Insights

In this era of fitness trackers, we have easy access to our heart rate at any given moment. Every so often, a number catches your eye as it flashes on your Garmin or Apple Watch while you're sitting ... Runner's World: Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high What is heart rate variability (HRV)?

Final Thoughts

As popular as the metaphor may be, a healthy heart doesn’t beat as regularly as a metronome. In fact, it changes its rhythm with each beat. Heart rate variability ...