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Did you know?
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Everyone has one nostril that is larger than the other.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.