Your heart rate is the number of times your heart beats in a minute. It changes over the course of the day as your activity level increases or decreases. Begin by measuring your resting heart rate. Ideally, you should do this when you first wake up in the morning. Now measure your heart rate during different types of activities. What is it when you’re reading quietly?

When you’re walking or doing chores around the house? Finally, measure your heart rate while you are exercising. Are you hitting your target zone for effective cardiovascular exercise? You can determine your target zone by following these directions:

First calculate your maximal heart rate:

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First calculate your maximal heart rate: Maximal heart rate = 220 - your age Then calculate your heart rate reserve: Heart rate reserve = maximal heart rate - resting heart rate You are in your target zone if you are using between 60% and 80% of your heart rate reserve: Low end of target zone: 60% (heart rate reserve) + resting heart rate High end of target zone: 80% (heart rate reserve) + resting heart rate