“…3 Irrespective of the source, these components define the PD patient experience. Although these are not the only factors explaining perceived quality of life, 4 there has been much interest over the last several years on the relevance of motor and nonmotor symptoms as determinants of quality of life in people with PD, [4][5][6][7][8][9][10][11] with nonmotor symptoms having collectively a greater impact than motor symptoms on the decline of health-related quality of life. 5,[8][9][10] Common nonmotor concerns among patients include sleep disturbance, 4,7,9 fatigue 4,5,11 and neuropsychiatric symptoms such as depression,…”