A new study led by researchers from University College London (UCL) suggests that the short-term cognitive boost following exercise can last up to the next day.
Published in the International Journal of Behavioral Nutrition and Physical Activity, the study observed that individuals aged 50 to 83 who engaged in more moderate to vigorous physical activity performed better on memory tests the following day.
Better sleep quality, especially deep slow-wave sleep, and at least six hours of rest were also associated with improved memory scores. Data from 76 participants, who wore activity trackers for eight days and took daily cognitive tests, supported these findings.
Lead author Dr. Mikaela Bloomberg highlighted that exercise improves blood flow to the brain and stimulates the release of neurotransmitters like norepinephrine and dopamine, which enhance cognitive function. These neurochemical effects may persist for hours, while other benefits, such as mood improvement, can last up to 24 hours.
Conversely, participants who spent more time sedentary than usual recorded worse working memory the next day.
The study, funded by the UK Economic and Social Research Council (ESRC), is among the first to evaluate next-day cognitive performance in real-life settings using a “micro-longitudinal” approach. It adds to evidence that physical activity not only supports cognitive health in the short term but may also contribute to long-term brain function.
