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TODAY, RUN FOR 25 MINUTES AT 60% MHR: In this program, we emphasize tracking your pulse because your pulse rate indicates the strain on your heart. Most of your workouts will be at a relatively low range: 60-70% of your maximum heart rate (maximum number of beats per minute). Maintaining a level of light stress on your heart for long periods of time, as you will in this program, will give you incredible cardiovascular benefits. If you're still not sure how to determine your maximum heart rate (MHR), take 220 and subtract your age. Therefore, if you're 35 years old, your MHR would be 220-35 = 185. If you're not sure how to take your pulse, remember to check either on the inside of your wrists below the thumb, or on your neck alongside your adam's apple. Count the number of beats for 10 seconds and multiply by 6. To make your math easier, count for 15 seconds and multiply by 4!
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