Flourish: A Visionary New Understanding of Happiness and Well-Being

Martin E. P. Seligman, a University of Pennsylvania psychologist known for his research on learned helplessness (the passivity that results from repeated exposure to uncontrollable stress), opens by declaring that his thinking about the purpose of psychology has changed. In 1998, as president of the American Psychological Association (APA), he urged the field to move beyond its traditional focus on relieving misery and to explore what makes life worth living. He calls this movement positive psychology and recounts how it received crucial early funding from Atlantic Philanthropies, a foundation created by businessman Charles Feeney. What began as a small grant to study genocide prevention grew into a $1.5 million investment after Seligman pitched the concept.

Seligman then revisits his earlier framework. In his 2002 book Authentic Happiness, he argued that happiness consists of three elements: positive emotion (the pleasant life), engagement (the experience of flow, in which self-consciousness vanishes during absorbing activity), and meaning (belonging to and serving something bigger than the self). He now identifies three problems. First, the word "happiness" is popularly equated with cheerful mood, making the theory seem narrow. Second, life satisfaction, the theory's gold standard measure, is disproportionately determined by momentary mood rather than considered judgment. Third, the three elements do not capture everything people pursue for their own sake. Senia Maymin, a Harvard mathematics graduate in Seligman's first Master of Applied Positive Psychology (MAPP) class, crystallized this last concern by pointing out that the theory omits success and mastery.

In response, Seligman introduces well-being theory. He redefines the subject of positive psychology as "well-being," a construct composed of five measurable elements summarized by the acronym PERMA: Positive emotion, Engagement, Relationships, Meaning, and Achievement. Each element must contribute to well-being, be pursued for its own sake, and be measurable independently of the others. Positive emotion becomes one element among five rather than the defining feature. Achievement is added because some people pursue success for its own sake, independent of pleasure, meaning, or relationships. Positive relationships earn their place through evolutionary arguments: The large human brain likely evolved as a social problem solver, and cooperative groups outcompete selfish ones. Seligman cites a study by Felicia Huppert and Timothy So of the University of Cambridge showing that flourishing rates vary across European nations, from 33 percent of citizens in Denmark to 6 percent in Russia. He argues that flourishing, not mere happiness, should guide public policy.

The book then turns to practical interventions. The Gratitude Visit asks participants to write and personally deliver a letter of thanks to someone they never properly thanked. The What-Went-Well exercise directs people to record three good things each day and explain why they happened. The Signature Strengths exercise has participants identify their top character strengths through the Values in Action (VIA) survey and use those strengths in new ways. In randomized controlled studies, the latter two exercises reduced depression and increased happiness for up to six months. Seligman also describes positive psychotherapy (PPT), a 14-session treatment developed by Dr. Tayyab Rashid, a therapist at Penn's Counseling and Psychological Services, that frames depression as partly caused by a lack of positive resources. In a preliminary test, PPT achieved remission in 55 percent of severely depressed patients, compared to 20 percent for treatment as usual and 8 percent for treatment as usual plus medication.

Seligman critiques existing treatments for depression, arguing that both drugs and conventional psychotherapy provide only symptom relief, not cure. He calls this the "65 percent barrier": Cognitive therapy and antidepressants each produce about 65 percent relief, but a large portion of that effect is attributable to placebo. He contends that negative emotions have strong heritable components and can be ameliorated but not eliminated, so therapy should also teach patients to function well despite ongoing distress. True cure, he argues, requires combining symptom relief with self-reinforcing positive psychology skills.

The book describes several large-scale applications. Seligman recounts creating the MAPP program at Penn in 2005, a graduate degree for mature professionals that combines challenging content, personal transformation, and the sense of calling that draws people to the field. He highlights findings by psychologist Barbara Fredrickson that a ratio of positive to negative statements above 2.9:1 distinguishes flourishing business teams, and that psychologist John Gottman found a 5:1 ratio predicts strong marriages.

In education, Seligman presents the Penn Resiliency Program (PRP), which teaches realistic thinking and coping skills to young people. A meta-analysis of 21 studies found that PRP reduces depression, anxiety, and conduct problems. A complementary curriculum tested at Strath Haven High School improved curiosity, creativity, social skills, and language arts grades. He then describes a whole-school implementation at Australia's Geelong Grammar School, where teachers trained for nine days, positive psychology was embedded across subjects, and daily practices permeated school culture.

A significant portion of the book addresses the U.S. Army's Comprehensive Soldier Fitness (CSF) program. After Army Chief of Staff General George Casey declared in late 2008 that he wanted an army "just as psychologically fit as it is physically fit" (127), he directed Seligman and Brigadier General Rhonda Cornum to design the program. Its components include the Global Assessment Tool, a confidential questionnaire measuring emotional, social, family, and spiritual fitness; online training modules; and Master Resilience Training (MRT) for sergeants. MRT teaches the ABC model (that beliefs about adversity, not the adversity itself, drive emotional consequences), identifies thinking traps and deeply held assumptions, and builds skills in active-constructive responding (meeting others' good news with enthusiastic, engaged support), effective praise, and assertive communication. Seligman argues that resilience, not post-traumatic stress disorder (PTSD), is the most common response to trauma, and that a substantial number of people experience post-traumatic growth. He presents Cornum as an exemplar: Captured during the 1991 Gulf War with severe injuries and sexually assaulted, she emerged with greater personal strength, deeper family appreciation, and sharper priorities.

Seligman presents a theory of achievement combining cognitive speed, executive function, rate of learning, and effort. He argues that effort, determined largely by self-discipline and what his doctoral student Angela Lee Duckworth calls GRIT (the combination of very high persistence and passion for long-term goals), multiplies existing skill. Duckworth's research shows that self-discipline outpredicts IQ for academic performance by a factor of about two, and that GRIT predicts completion of West Point's grueling summer training better than any other measure.

Turning to physical health, Seligman reviews evidence that optimism protects against cardiovascular disease across multiple large studies. Psychologist Sheldon Cohen's rhinovirus experiments demonstrate that people with high positive emotion develop fewer colds after deliberate infection, through a mechanism involving lower levels of the inflammatory protein interleukin-6. Seligman proposes the concept of "positive health," defined not as the absence of illness but as a state characterized by subjective, biological, and functional assets, and describes a Robert Wood Johnson Foundation-funded initiative to identify which assets predict longer life and lower health care costs.

The book closes with arguments about politics and economics. Seligman contends that gross domestic product (GDP) poorly measures national well-being because it rises with divorces, car accidents, and antidepressant sales. U.S. life satisfaction has been flat for 50 years despite GDP tripling. He proposes a "New Prosperity" combining wealth and well-being and articulates a long-term mission: By 2051, 51 percent of the world's population will be flourishing. He envisions achieving this through positive education, army resilience training, positive business (pursuing profit alongside meaning, engagement, positive emotion, and relationships), well-being-oriented governance, and positive computing (using technology to measure and disseminate well-being at scale). He frames this aspiration through Nietzsche's image of the Child Reborn, who asks not what to reject but what to affirm.