Flow state

Flow, described by psychologist Mihaly Csikszentmihalyi, is a state of deep absorption in a challenging activity matched to one's skill, accompanied by reduced self-awareness and altered time perception. It is a popular wellbeing concept whose subjective experience is well-documented, while neural correlates remain debated. For longevity it is relevant because regular flow correlates with life satisfaction, sustained engagement, and the kind of meaningful activity that supports cognitive aging.