Parkinson's Disease Index

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Parkinson's disease is a slowly progressive neurologic disease characterized by a fixed inexpressive face, a tremor at rest, slowing of voluntary movements, a gait with short accelerating steps, peculiar posture and muscle weakness, caused by degeneration of an area of the brain called the basal ganglia, and by low production of the neurotransmitter dopamine. Most patients are over 50, but at least 10 percent are under 40.

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    Related Diseases & Conditions

    • Muscle Cramps Muscle cramps are involuntarily and forcibly contracted muscles that do not relax. Extremely common, any muscles that have...learn more »
    • Muscle Spasms Muscle spasms are involuntary muscle contractions that come on suddenly and are usually quite painful. Dehydration, doing...learn more »
    • Dizziness Dizziness is a symptom that is often applies to a variety of sensations including lightheadedness and vertigo. Causes of...learn more »
      In This Article
      Dizziness Article
      • Dizziness facts
      • Introduction to dizziness (feeling dizzy)
      • What are some common causes of dizziness?
      • Low blood pressure
      • Postural or orthostatic hypotension
      • High blood pressure
      • Diabetes
      • Endocrine diseases
      • Hyperventilation
      • Heart conditions
      • Vasovagal syncope
      • Dizziness and vertigo
      • What are the symptoms experienced when a person feels dizzy?
      • When should I call the doctor for dizziness?
      • How is dizziness diagnosed?
      • How is vertigo diagnosed?
      • How is dizziness treated?
    • Tremors Tremor is the involuntary movements of one or more parts of the body. Causes of tremor include neurological disorders,...learn more »
      In This Article
      Tremors Article
      • What is tremor?
      • What causes tremor?
      • What are the characteristics of tremor?
      • What are the different categories of tremor?
      • How is tremor diagnosed?
      • Are there any treatments for tremor?
      • What research is being done on tremor?
      • Where can I get more information?
    • Hoarseness Hoarseness (abnormal deep, harsh, raspy voice) is caused by a variety of conditions in which the larynx (voice box and vocal...learn more »
      In This Article
      Hoarseness Article
      • Hoarseness facts
      • What is hoarseness?
      • What causes hoarseness?
      • What are the signs and symptoms of hoarseness?
      • How are the causes of hoarseness diagnosed?
      • What is the treatment for hoarseness?
      • How is hoarseness prevented?
    • Fainting (Syncope) Fainting, also referred to as blacking out, syncope, or temporary loss of consciousness has many causes. Often a person will have...learn more »

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Terms related to Parkinson's Disease:

  • Disease, Parkinson's
  • Parkinson Disease
  • Parkinsonism
  • Parkinsons Disease