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Why do they say raise your heart rate

but they never say what the reason to raise your HR is when exercising, and why do we have to cool down/walk it off.

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Asked by babygirl821 at 8:35 AM on Feb. 6, 2009 in Diet & Fitness

Level 1 (2 Credits)
Answers (2)
  • Increased heart rate causes your body to work harder at moving. Everything you do on a daily basis, even if it is sleeping, burns calories. Your body is never truly at rest as your organs are continually moving and doing their jobs. Same with muscle. The target heart rate for aerobic exercise - which means that your muscles are using oxygen as they work - allows your body to reach a set number to make it easy to know where you need to aim for.

    Cool downs are important to allow your heart rate to gradually return to normal and your body temperature to as well. Doing it gradually allows for less health risk to your heart and muscles.

    Answer by Ginger0104 at 9:07 AM on Feb. 6, 2009

  • Also it will help lower your resting HR which means your heart won't have to work as hard to do it's normal daily functions which is good for you and the heart in the long run. If your resting HR is too high that can be a sign of something wrong. But everyone is different so its good to always keep that in mind.

    Answer by HayleyGM at 12:19 PM on Feb. 6, 2009

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