The majority of my research career has been devoted to studying human happiness. Why is the scientific study of happiness important? In short, because most people believe that happiness is meaningful, desirable, and an important, worthy goal, because happiness is one of the most salient and significant dimensions of human experience and emotional life, because happiness yields numerous rewards for the individual, and because it makes for a better, healthier, stronger society. Along these lines, my current research addresses three critical questions: 1) What makes people happy?; 2) Is happiness a good thing?; and 3) How and why can people learn to lead happier and more flourishing lives?