Melatonin Levels in Parkinson’s Patients May Be Linked to Non-motor Symptoms
Alterations in the levels of melatonin — the hormone that controls sleep-wake cycles — circulating in the blood are associated with certain non-motor symptoms of Parkinson’s disease, namely sleep disturbances, gastrointestinal issues, and heart problems. The study with that finding, “Elevated Plasma Melatonin Levels…