We expected (1) to confirm GBA‐PD patients have more frequent and severe autonomic dysfunction than PD noncarriers4, 5, 9, 10 and (2) to find that instrumental assessment of autonomic dysfunction is more sensitive than clinical questionnaires, implying that clinical assessment alone may underestimate an underlying cardiovascular autonomic dysfunction, which could contribute to the reduced survival related to GBA mutations.4 The gene discussed is GBA1; the disease is Abnormal autonomic nervous system physiology.