True happiness isn't pleasure or success—it's a balance of enjoyment, satisfaction, and meaning. Dr. Arthur Brooks reveals three macronutrients of happiness grounded in neuroscience and philosophy, plus actionable tools to identify what's blocking your access to a fulfilling life. Happiness comprises three macronutrients—enjoyment (pleasure elevated by moral aspiration), satisfaction (joy earned through struggle), and meaning (connection to purpose beyond worldly rewards like money, power, fame, and honor).