Brain
Stimulate the brain and find out how this fantastically complex organ is the body's primary control center.
Heart
Every cell in the body depends on this muscle, the body's hardest-working organ.
Digestive System
Feed the body different foods and discover how this system is the body's fuel factory.
Lungs
Learn how the lungs provide the breath of life and see the debilitating effects of asthma.
Skin
Watch how aging and stresses like cuts and sunlight can affect the body's largest organ.
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Environment
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Science
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