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Body Invaders: Rheumatoid Arthritis

Related Article: Learn more about diseases from P to R.

The Discovery Health show "Body Invaders" explains rheumatoid arthritis, which can afflict people all ages. Follow Ana, a young sufferer of the condition.

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Body Invaders: Pneumonia (2:00)

Learn about the signs and symptoms of pneumonia and how a vaccine can prevent this condition in this video from the Discovery Health show "Body Invaders."

Body Invaders: Rheumatoid Arthritis (2:54)

The Discovery Health show "Body Invaders" explains rheumatoid arthritis, which can afflict people all ages. Follow Ana, a young sufferer of the condition.

Discovery Health CME: Restless Legs Syndrome (8:05)

On this episode of Discovery Health Channel's Continuing Medical Education learn about Restless Legs Syndrome and how to calm the storm.

Mecial Indredible: Man-size Toddler (2:46)

Discovery Health's "Medical Incredible" follows a toddler living in Australia who is four times as large as he should be because of a rare disease, psuedohypoparathyroidism.

Human Atlas: Bladder Infection (0:45)

A bladder infection occurs when bacteria enters the urethra and bladder causing inflammation and infection. Learn more about bladder infections in this video.

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Human Mutants: Castration (2:23)

Castrated men grow unusually tall because they are deprived of estrogen. Learn more about castration on Discovery Channel's "Human Mutants."

Heroes of Science: Jonas Salk (4:23)

After years of intense research, Jonas Salk developed a vaccine against polio, a disease that had threatened the lives of children for years.

Human Atlas: Bladder Infection (0:45)

A bladder infection occurs when bacteria enters the urethra and bladder causing inflammation and infection. Learn more about bladder infections in this video.

Human Atlas: Pneumonitis (1:21)

Pneumonitis is a group of diseases classified as "interstitial lung diseases" and refers to inflammation of the alveoli within the lung. Learn more pneumonitis in this video.

Human Atlas: Parkinsons Disease (1:00)

Parkinson's disease is a degenerative disorder of the central nervous system. Watch this video to learn more about Parkinson's disease.

Human Atlas: Splenectomy (1:02)

Splenectomy is the surgical removal of the spleen due to injury or illness. Watch this video to learn more.

Human Atlas: Pneumothorax (2:05)

A pneumothorax occurs when air is trapped in the pleural cavity, which produces pressure on the lung. Learn more about pneumothorax in this video.

Body Invaders: Pneumonia (2:00)

Learn about the signs and symptoms of pneumonia and how a vaccine can prevent this condition in this video from the Discovery Health show "Body Invaders."

Body Invaders: Rheumatoid Arthritis (2:54)

The Discovery Health show "Body Invaders" explains rheumatoid arthritis, which can afflict people all ages. Follow Ana, a young sufferer of the condition.