A recent study conducted by experts from University College London has shed light on the intriguing role that exercise and sleep play in boosting memory performance on the following day.
The research, published in the International Journal of Behavioral Nutrition and Physical Activity, reveals that when individuals engage in a session of moderate to intense physical activity, it can have a beneficial effect on cognitive functions, which includes memory enhancement and quicker reaction times.
Details of the Study
Participants in the study, which consisted of 76 adults aged between 50 and 83, were monitored using activity trackers while also undergoing daily cognitive tests across a period of eight days. This was to observe the interplay between levels of physical activity, sleep quality, and cognitive abilities. Findings indicated that a rise in physical activity was directly linked to an improvement in both working and episodic memory on the day after exercise. Further to this, participants combining exercise with at least six hours of sleep and limited sedentary time saw even better memory performance.
Enduring Memory Benefits
The persistence of cognitive enhancements post-exercise was once considered to be short-lived, but this study from UCL suggests these benefits may endure until the next day, especially when accompanied by restorative sleep.
Dr. Mikaela Bloomberg, the principal investigator from UCL’s Institute of Epidemiology & Health Care, stated, “The enduring memory benefits from physical activity might be more extensive than previously perceived.” She also mentioned that such moderate to intense activities could include ones as simple as brisk walking, taking part in dance classes, or stair climbing.
Considerations and Significance
Careful consideration was given to various factors over the course of the eight-day study by the research team in order to achieve a comprehensive view of how physical activity influences cognitive outcomes.
Professor Andrew Steptoe, a co-researcher from UCL’s Institute of Epidemiology & Health Care, emphasized the significance of sustained cognitive abilities for older adults to maintain a good quality of life and independence. “Our findings indicate that the immediate cognitive advantages of physical exertion may be more long-lasting than once thought,” remarked Steptoe.
Study Limitations and Future Steps
While the findings are indeed promising, the researchers have pointed out certain limitations, such as the limited size and the specific cognitive health of the participants. To verify these initial findings, additional research is required on a broader scope and amongst individuals with cognitive impairments.
Supported by the Economic and Social Research Council in the UK, the study represents a collaborative effort between the UCL Institute of Epidemiology & Health Care, UCL Division of Surgery & Interventional Science, and the University of Oxford. It is hoped that the new insights from this research will feed into the wider discourse regarding the potential for regular physical activity to lessen dementia risks and decelerate cognitive decline.
