https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5934999/ — "Much evidence shows that physical exercise (PE) is a strong gene modulator that induces structural and functional changes in the brain, determining enormous benefit on both cognitive functioning and wellbeing. PE is also a protective factor for neurodegeneration."
https://pubmed.ncbi.nlm.nih.gov/31963639/ — "Since PA in higher intensity causes more extensive, more powerful, and longer-lasting neurobiological changes, it may prove more beneficial to cognitive functions and mental health."