Your heart rate zones might be completely wrong. Not only are zones defined differently in different apps, they are also ...

View this interactive chart on Fortune.com Smartwatches and other fitness trackers are great for people seeking detailed, ...

Heart rate naturally increases during exercise, but a consistently high target heart rate can pose dangers. Here are ways to ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

How can you calculate it? It's all about hitting different heart rates, or the the number of times your heart beats per minute. If you're focusing on moderate exercise, experts say you should be ...

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