Parkinson's: four unusual signs you may be at risk

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Changes in bowel habits occur up to 20 years before the onset of Parkinson's, write Patrick Lewis and Alastair Noyce

Do you move around a lot during your sleep? Or have you lost your sense of smell? New insights into Parkinson’s disease suggest that these might be the early signs of changes in the brain that mean you are at greater risk of developing Parkinson’s.