"Boost Your Brainpower with Light Exercise"

Mild forms of exercise, such as walking, have been found to improve mood and enhance executive function, which involves the brain's prefrontal cortex and the ability to control behavior to achieve goals. Researchers have discovered that pupil dilation during light exercise is linked to an improvement in executive function. Pupillometry, a non-invasive technique that measures pupil size, could serve as a biomarker for the brain's response to exercise and predict its effects on cognitive function.