Maslow's hierarchy of needs is a theory that organizes human needs into a hierarchy, ranging from basic physiological needs such as food and water to higher-level, abstract needs such as self-fulfillment. Maslow proposed that when a lower need is met, the next need on the hierarchy becomes our focus of attention.
The five categories of needs according to Maslow are physiological needs, safety needs, love and belonging needs, esteem needs, and self-actualization needs.