character: Dr. Mark Johnson
topic: Understanding Heart Rate Variability During Exercise
grade: 12
subject: Biology
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character: Dr. Emily Carter
topic: The Impact of Exercise on Cardiovascular Health
grade: 12
subject: Biology
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character: Dr. Alex Thompson
topic: Physiological Responses to Physical Activity
grade: 12
subject: Biology
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character: Dr. Sarah Lee
topic: The Science Behind Athlete Recovery and Heart Rate Monitoring
grade: 12
subject: Biology
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