character: Dr. Emily Hart
topic: Cardiovascular Physiology and the Benefits of Exercise
grade: 11
subject: Science
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character: Coach Mike Johnson
topic: How Regular Exercise Improves Heart Health
grade: 11
subject: Science
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character: Dr. Sarah Lee
topic: The Impact of Aerobic Activity on Blood Circulation
grade: 11
subject: Science
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character: Professor Alan Reed
topic: Understanding Heart Rate Variability During Physical Activity
grade: 11
subject: Science
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