January 17, 2026

@michaelokun

Does early autonomic burden in prodromal Parkinson’s disease predict later cognitive (thinking) impairment? Autonomic refers to body functions that we do not consciously control such as blood pressure, digestion, sweating and heart rate. Martinez Nunez and colleagues describe in a new paper in Movement Disorders how early autonomic symptoms in prodromal Parkinson’s disease may be linked to later cognitive (thinking) decline. Key points: - Early autonomic dysfunction before Parkinson’s motor diagnosis was strongly associated w/ future cognitive impairment. - Cardiovascular autonomic symptoms stood out as the strongest predictor of cognitive decline. - Specific thinking domains included semantic fluency and working memory, and these declined faster in those w/ more autonomic burden. My take: This study reinforces that Parkinson’s disease starts years before tremor or slowness show up to the party. The body may be offering early warning signals. If we listen carefully to autonomic symptoms, we may one day be able to identify folks at higher risk and intervene earlier. Here are 5 points that resonated w/ me: 1- Non-motor symptoms are not side issues; they are core features of Parkinson’s disease biology. 2- Cardiovascular autonomic symptoms may be a window into brain vulnerability, not just a quality of life issue. 3- Cognitive (thinking) changes can begin silently during the prodromal phase long before diagnosis. 4- Early identification of higher risk folks could reshape how health care providers design trials and provide counseling. 5-Treating autonomic symptoms earlier may someday help protect thinking and daily function. https://movementdisorders.onlinelibrary.wiley.com/doi/10.1002/mds.70202 #parkinson #michaelokun #fixelinstitute