Walking Slows Progression of Alzheimer's

Walking may slow cognitive decline, both in adults with cognitive impairment or Alzheimer's disease, and in healthy adults.

Researchers analyzed the relationship between physical activity and brain structure in more than 400 people. The scientists monitored how far each of the patients walked in a week, and after 10 years, all patients underwent MRI exams to identify changes in brain volume.

Science Daily reports:

"The findings showed across the board that greater amounts of physical activity were associated with greater brain volume. Cognitively impaired people needed to walk at least 58 city blocks, or approximately five miles, per week to maintain brain volume and slow cognitive decline. The healthy adults needed to walk at least 72 city blocks, or six miles, per week to maintain brain volume and significantly reduce their risk for cognitive decline."

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