• Not all activities are equal in this regard. Those that involve genuine concentration—studying a musical instrument, playing board games, reading, and dancing—are associated with a lower risk for dementia. Dancing, which requires learning new moves, is both physically and mentally challenging and requires much concentration. Less intense activities, such as bowling, babysitting, and golfing, are not associated with a reduced incidence of Alzheimer’s. (254)

    Norman Doidge (2007). “The Brain That Changes Itself: Stories of Personal Triumph from the Frontiers of Brain Science”, p.254, Penguin