5.Exercise ‘does not harm memory,’ study confirms
In 2014, a study published in the journal Science claimed that new neurons created through physical activity erase old memories. Now, new research by scientists from Texas A&M College of Medicine finds this is not the case.

Researchers say exercise does not harm memory, contrary to one study from 2014. Published in the Journal of Neuroscience, the study reveals that physical activity does fuel the development of new neurons – or nerve cells – in a brain region crucial to memory, but that these newly formed neurons do not hinder memory recall. It is generally accepted that exercise is beneficial for cognitive function, due to the abundance of studies that have demonstrated as such. But in May 2014, research from the University of Toronto in Canada suggested that, when it comes to memory, physical activity could do more harm than good. “It stunned the field of hippocampal neurogenesis,” says Ashok K. Shetty, Ph.D., co-author of this latest research and a professor in the Texas A&M College of Medicine Department of Molecular and Cellular Medicine. “It was a very well-done study, so it caused some concern that exercise might in some way be detrimental for memory.” In the 2014 study, researchers found mice that exercised demonstrated greater development of new neurons – known as neurogenesis – than those that did not exercise. 

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