Folks with metabolic syndrome have up to a 40% higher risk of developing Parkinson's disease, a new study says.

Metabolic syndrome is a cluster of health problems that include excess belly fat, high blood pressure, elevated blood sugar and abnormal cholesterol levels.

It's already known to increase people's risk of heart disease, stroke and type 2 diabetes.

And now researchers have found an association between metabolic syndrome and Parkinson's, a degenerative nerve disease that primarily affects motor skills, according to findings published Wednesday in the journal Neurology.

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