Walking speed linked to lower dementia risk in elderly

A new study published in the journal Neurology suggests a significant link between walking speed in older adults and cognitive health. Researchers analyzed data from five large-scale aging studies involving nearly 4,000 participants, with an average age of approximately 84 years.

Individuals identified as having outstanding motor performance—those walking faster than 93% of their peers—showed a 50% lower risk of cognitive decline compared to slower walkers. Furthermore, this group faced a 60% lower risk of being diagnosed with Alzheimer’s disease or other forms of dementia.

Brain imaging revealed that these faster walkers often possess a larger hippocampus, a region critical for memory formation and retention. The study also noted that these individuals experienced slower declines in memory, information processing speed, and cognitive flexibility over a follow-up period of 3.4 to 5.4 years.