The researchers say that what makes these results even more interesting is that these results were achieved using the levels of exercise that are in line with physical activity recommendations for older adults.
The guidelines encourage moderate intensity exercise over most days, totaling 150 minutes each week, the researchers add.
The study authors say that this research suggests that exercise could limit the need for over-activation in the brain in order to recall memory. They add that this is encouraging for those who want to preserve brain function.