character: Cardiologist Jane
topic: Impact of Exercise on Heart Health
grade: 10
subject: Biology
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character: Fitness Expert Mark
topic: Benefits of Regular Physical Activity
grade: 10
subject: Biology
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character: Nutritionist Sarah
topic: Diet and Heart Health
grade: 10
subject: Biology
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character: Physiologist Tom
topic: Understanding Cardiovascular Fitness
grade: 10
subject: Biology
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