An electrical circuit is made up of numerous wires connected in such a way that when a light switch is turned on, a light bulb will beam. Try to picture electrical wiring in your home. Nerve cells, or neurons, are responsible for sending and receiving nerve impulses or messages between the body and the brain. To understand Parkinson's, it is helpful to understand how neurons work and how PD affects the brain (see Anatomy of the Brain). Treatments focus on reducing symptoms to enable a more active lifestyle and include medication, diet, exercise, and deep brain stimulation surgery. When dopamine-producing neurons die, symptoms such as tremor, slowness, stiffness, and balance problems occur. Parkinson’s disease (PD) is a progressive disorder that affects nerve cells in the brain responsible for body movement.
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