Loneliness speeds up movement decline in parkinsonism

Feeling lonely does not just hurt mood. New research suggests it can hasten how quickly movement worsens in people living with parkinsonism. At the International Congress of Parkinson’s Disease and Movement Disorders in Honolulu, investigators reported long-term data from about 1,700 people who completed both a brief loneliness screen and standard motor testing (MDS-UPDRS Part III). Tracked for an average of 5.3 years, loneliness turned out to be the stronger predictor: people who felt lonelier at baseline tended to lose motor function faster over time, even when the team flipped the models to test whether motor severity predicted later loneliness. In short, loneliness wasn’t just a by-product of worsening symptoms — it signalled who was likely to decline sooner. Why this matters: loneliness is modifiable. Screening for it, then acting on what you find, could slow real-world decline. Practical steps include regular social contact (in person or virtual), group exercise, community classes, peer support, and “social prescribing” through primary care. The result is not only better mood and resilience but potentially steadier walking and hand control. The new findings fit a bigger picture. Earlier population studies linked loneliness with a higher chance of developing Parkinson’s later on, and with quicker motor decline in older adults generally, independent of depression or how often people went out. Together, the evidence argues for treating social connection as part of core care, not an optional extra.