What The Study Did: Researchers in this observational study looked at whether physical activity moderates the association of β-amyloid levels, a biomarker of Alzheimer disease, with cognitive decline and neurodegeneration over time in clinically normal older adults.
Author: Jasmeer P. Chhatwal, M.D., Ph.D., of Massachusetts General Hospital, Harvard Medical School in Boston, is the corresponding author.
(doi:10.1001/jamaneurol.2019.1879)
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