DAVID GIFFORD / SCIENCE PHOTO LIBRARY DAVID GIFFORD / SCIENCE PHOTO LIBRARY
Parkinson's disease. Computer artwork of a human brain, highlighting the area (yellow) of the brain involved in Parkinson's disease. The front of the brain is at centre left. Parkinson's disease is a neurological disorder caused by a gradual degeneration of nerve tissue within the brain's basal ganglia. This area of the brain is involved in controlling motor functions. Nerve degeneration prevents contracted muscle in the body from relaxing, causing tremors, joint rigidity and slow movement. The symptoms worsen over time. There is no cure for Parkinson's, but dopamine drugs can help to restore some fluidity of movement.
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