character: Dr. Margaret K. McNair
topic: The Importance of Exercise for Astronaut Health
grade: 9
subject: Science
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character: NASA Astronauts
topic: Effects of Microgravity on the Human Body
grade: 9
subject: Science
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character: Exercise Physiologists
topic: Cardiovascular Health in Space
grade: 9
subject: Science
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character: Space Mission Specialists
topic: Prevention of Muscle Atrophy in Space
grade: 9
subject: Science
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