character: Dr. Healthy
topic: How Aerobic Exercise Improves Heart Health
grade: 9
subject: Science
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character: Fitness Guru
topic: Benefits of Regular Cardiovascular Exercise
grade: 9
subject: Science
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character: Nutritionist Lisa
topic: Diet and Heart Health: The Role of Exercise
grade: 9
subject: Science
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character: Physiologist Mike
topic: Understanding Heart Rate and Exercise Intensity
grade: 9
subject: Science
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