This is the heart rate that will have the greatest benefit to you and your need to derrive aerobic benefit from exercise and therefore maintain a heart healthy lifestyle. First we must establish your maximum heart rate, the highest rate your heart is likely to beat. This would be 220 minus your age. A 15 year old's maximum heart rate would be 205. The target heart rate zone is between 60 and 80 percent of your maximum heart rate.
Daily exercise is ideal, but the minimum is three.
Longer is always even better. Find out how many calories were burned for every activity you engaged in. Compare these two items and discover, for that one day, how your calorie imput compared to your calorie output. Maintains the calandar with all three heart rates and the daily activity. Always does this at the appropriate time, never misses.