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What is the first sign of Parkinson's disease?

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Although the first signs of Parkinson's disease vary from person to person, for many people with Parkinson's disease the first sign is tremors, according to WebMD. One or both sides of the person's body may experience tremors in the hands, the legs and the arms when walking or when sitting.

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The location of the tremors and the frequency of the tremors also vary from person to person, notes WebMD. For example, some people only experience tremors on one side of the body. These tremors may become more noticeable when people are in a state of rest or relaxation. The tremors associated with Parkinson's disease may also occur in a person's lips, chin and tongue. Stress, both emotional and physical, can make the tremors more noticeable.

Tremors and other signs of Parkinson's disease typically begin between the ages of 50 and 60, as reported by WebMD. These signs may begin slowly at first, and gradually worsen over time.

The appearance of tremors alone may not indicate that a person has Parkinson's disease, however. People should seek medical attention when additional signs, such as changes in speech and handwriting, difficulty maintaining balance and posture, stiff muscles and slow body movements, appear along with tremors, as stated by Mayo Clinic.

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