Treadmill test- If you don’t feel uncomfortable at 85% of your Predicted Heart rate (220-Your Age is the Max HR for your Age) then your Heart has good blood supply. When we run or engage in extreme sports our HR races to its maximum value and that is another way to test . No breathlessness, No chest discomfort . This is my HR chart from my morning Treadmill run | Chandranshu chaudhary-बेबाक़ बातें

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