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A top cardiovascular researcher is sounding the alarm over global heart health guidelines, warning that universal ...

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This is true if you can’t achieve 85% of your maximum heart rate but don’t experience any ... If your score is less than or equal to −11, you’re at high risk of cardiac complications.

But what happens if your heart rate is too high during exercise? As cardiologists explain here, reaching this point could be dangerous, so it’s important to know what to do if it happens.