Do you struggle to get your heart rate low enough to do zone two training? We asked a cardiologist what factors can cause a high heart rate during exercise.

Exercise & heart rate: how high is too high when working out?

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What factors influence your heart rate when exercising? 

How high is too high for an active heart rate? 

When does a high heart rate during exercise become a cause for concern? 

A cardiologist explains why some people struggle with zone two training.

Why your heart rate goes so high when you exercise – and when to be concerned