Medically reviewed by Jeffrey S. Lander, MD Key Takeaways Go to the hospital if a rapid heart rate is with chest pain, ...

To get a sense of what average running heart rates look like for the pros, we peeked at some of their public Strava posts. According to Kodi Kleven’s Strava, she led the 2026 Bo ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running: Simply don the device, start your workout, and watch those beats per ...

Learn why your heart may be beating slowly, and when it is normal and when it is not, prompting immediate check-up.

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...

Consistently high heart rate may signal dehydration or poor recovery. Resting heart rate indicates fitness; healthy ranges are 60–100 bpm, 40–50 for athletes. Consistently high or very low heart rates ...

Heart rate data can be useful, but it can also induce panic for no reason. Two runs that feel similar can give quite ...