character: Dr. Matthew Walker
topic: Sleep Scientist and Author of 'Why We Sleep'
grade: 9
subject: Physical Education
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character: Dr. Mary Carskadon
topic: Researcher on Adolescent Sleep Patterns
grade: 9
subject: Physical Education
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character: Dr. Chris Winter
topic: Expert on Sleep and Health
grade: 9
subject: Physical Education
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character: Dr. PhD Megan Duffy
topic: Effects of Sleep Cycles on Teen Health
grade: 9
subject: Physical Education
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