Answer: Use your maximum heart rate.
Explanation:
To set your intensity level, you need to use your maximum heart rate, which is determined by subtracting your age froom 220.
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Smoking causes coronary heart disease, the leading cause of death in the U.S. Smoking causes lung cancer and lung diseases including COPD, and Emphysema.
Alcohol can cause brain damage. Binge drinking can cause blackouts, memory loss and anxiety. Long term drinking can result in permanent brain damage, serious mental health problems and alcohol dependence or alcoholism.
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An organism that has more than one cell.
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