CNN (11/3, LaMotte) reports, “Increasing the number of steps” taken “every day may slow cognitive decline in older adults who already have biological signs of early Alzheimer’s disease, according to a new observational study.”
MedPage Today (11/3, George) reports that investigators found that “in a group of cognitively unimpaired older adults with elevated levels of amyloid-beta, Alzheimer’s-related decline was delayed by an estimated 3 years on average for those who walked 3,000-5,000 steps per day, and by 7 years in people who walked 5,000-7,500 steps per day.” The “relationship emerged only for people with elevated brain amyloid,” and “was not related to lower amyloid burden at baseline or over time.” MedPage Today adds, “Instead, higher physical activity was associated with slower amyloid-related inferior temporal tau accumulation, which mediated associations with slower cognitive decline.” The study was published in Nature Medicine.
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