And each element of well-being must itself have three properties to count as an element: 1. It contributes to well-being. 2. Many people pursue it for its own sake, not merely to get any of the other elements. 3. It is defined and measured independently of the other elements (exclusivity). Well-being theory has five elements, and each of the five has these three properties. The five elements are positive emotion, engagement, meaning, positive relationships, and accomplishment. A handy mnemonic is PERMA.
