2.5 billion. No, it's not how old the Earth is. It's the average amount of times the heart beats in a lifetime, according to the American Heart Association. A quick review on this important organ: The ...

We may earn a commission if you make a purchase through one of our links. McClatchy newsrooms were not involved in the creation of this content. As you grow older, your health issues can increase, and ...

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Your heart rate measures the number of times your heart performs beats in one minute. A normal heart rate at rest should fall between 60 and 100 beats per minute (on the lower side will be better) You ...

You’re familiar with the feeling of your heart pounding in your chest, your blood pulsing through your veins with increasing frequency when you’re scared, stressed, or sweating it out at the gym.

If you’ve ever bolted awake from a nightmare with your heart beating like a frenzied drum, you already know that sleep and rest are not the same. Which is why it should make sense that neither are ...

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 ...