Tourette's Syndrome

Tourette's syndrome is a problem with the nervous system that causes people to make sudden movements or sounds, called tics, that they can't contro...

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Thoracic Outlet Syndrome

Thoracic outlet syndrome (TOS) is when you have pain, swelling, or other symptoms from compression in your thoracic outlet -- the opening between y...

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Spinal Muscular Atrophy

Spinal muscular atrophy (SMA) most often affects babies and children and makes it hard for them to use their muscles. Babies with this type of SMA ...

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Restless Legs Syndrome (RLS)

Restless legs syndrome (RLS) is a nervous system disorder that causes an overpowering urge to move your legs. Symptoms almost always go away in the...

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Multifocal Motor Neuropathy

Multifocal motor neuropathy (MMN) is a disease that affects your body's motor nerves. If you have MMN, you’ll most likely notice the first symptoms...

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Basics of Mad Cow Disease

Mad cow disease, or bovine spongiform encephalopathy (BSE), is a transmissible, slowly progressive, degenerative, and fatal disease affecting the c...

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