Positive Psychology:A branch of psychology that focuses on the study of human strengths, well-being, and the factors that contribute to a meaningful and satisfying life, as opposed to solely focusing on mental illness and dysfunction.
Learned Helplessness:A psychological condition in which individuals believe they are unable to control or change their situation, often leading to depression and a lack of motivation, which Seligman's early work helped to identify and understand.
Authentic Happiness: A concept developed by Seligman that emphasizes the importance of finding meaning, engagement, and positive emotions in one's life, rather than just pursuing temporary pleasure or happiness.