There is no escaping the evidence that regular moderate exercise is associated with a host of medical benefits. Among those benefits are perhaps improved memory and cognition, and questionably a decreased risk of developing dementia.
The latest study to show this correlation involved younger and older adults who wore a step-monitor. The number of steps they took during the study interval was then correlated with their performance on neuropsychological testing. The researchers found that for the older adults, but not younger adults, more physical activity correlated with better overall cognitive performance, but especially for face-name recognition.
This is a small study, with 60 subjects total. Also, the study is correlational only. It is possible that healthier older adults are both more physically active and cognitively nimble, because of underlying biological fitness. More cognitively active older adults may also be more physically active – the lines of cause and effect are plausible in multiple ways. (more…)