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How high of a heart rate is too high during exercise? - Quora
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Is a resting heart rate of 55 BPM dangerous for a 19-year-old? Should I be concerned about this? I'm not particularly active but I've started exercising and got a Fitbit which is
What should your heart rate be while lifting weights? - Quora
How high of a heart rate is too high during exercise? - Quora
Sinus tachycardia: Normal vs. inappropriate, and more
Why, even with 2 hours of cardio exercises daily, I still do not lose weight? I am a vegetarian and hardly indulge in sweet and oily food. - Quora
How much does your heart rate increase during exercise? - Quora