Exercising within your target heart rate zone has benefits, and wearable heart rate monitors make doing so easier. Here are some of the best heart rate monitor watches on the market.
The rest of the story
livescience.com
Exercising within your target heart rate zone has benefits, and wearable heart rate monitors make doing so easier. Here are some of the best heart rate monitor watches on the market.
The rest of the story
livescience.com
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