Health Investigations With Dr. Know: Respiratory System DVD

Discovery Education

$59.95 $69.95
SKU: DC903096
Format: DVD
Grade Level:
Runtime: 20
Copyright:

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Marc Record

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Take a deep breath as Dr. Know looks at how the respiratory system works. First he bellies up to the oxygen bar to find out if there's any health benefit to breathing pure oxygen. Then, stay awake as he tries to determine whether yawning really is contagious.

Dr. Know is real-life physician Paul Trotman. Join him as he debunks, deflates, and demystifies many of the myths we've been told about staying healthy. Topics range from the puzzling and exciting to the titillating and scary, but they're always interesting and filled with facts that will make you say, "I didn't know that."