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Journal of Neurology, Neurosurgery & PsychiatryTiming of Physical Activity Across Adulthood on Later-life Cognition: 30 Years Follow-up in the 1946 British Birth Cohort

In the study, 1,400 individuals were assessed multiple times between ages of 36 and 69 for level of physical activity. They were quantified as not active, moderately active, and most active. Cognition measurements in later life showed a dose-response relationship between sustained levels of physical activity and later-life cognition status.