Happiness, is positive or pleasant emotions ranging from contentment to intense joy in the context of mental or emotional states. Other forms include life satisfaction, well-being, subjective well-being, flourishing and eudaemonia. Happiness explained. Anand.
Research on positive psychology, well-being, eudaemonia and happiness, and the theories of Diener, Ryff, Keyes, and Seligmann covers a broad range of levels and topics, including "the biological, personal, relational, institutional, cultural, and global dimensions of life."
Community, family, friends, food, sleep, shelter, entertainment, culture, interests, religion, and politics are the most consistent reasons for people’s happiness.