Introversion is a basic personality style characterized by a preference for the inner life of the mind over the outer world of other people. One of the Big Five dimensions that define all personalities, introversion sits on a continuum at the opposite end of which is extroversion. Compared to extroverts, introverts enjoy subdued and solitary experiences.| Psychology Today
Though our need to connect is innate, many of us frequently feel alone. Loneliness is the state of distress or discomfort that results when one perceives a gap between one’s desires for social connection and actual experiences of it. Even some people who are surrounded by others throughout the day—or are in a long-lasting marriage—still experience a deep and pervasive loneliness. Research suggests that loneliness poses serious threats to well-being as well as long-term physical health.| Psychology Today
Happiness is an electrifying and elusive state. Philosophers, theologians, psychologists, and even economists have long sought to define it. And since the 1990s, a whole branch of psychology—positive psychology—has been dedicated to pinning it down. More than simply positive mood, happiness is a state of well-being that encompasses living a good life, one with a sense of meaning and deep contentment.| Psychology Today
Extroversion is a personality trait typically characterized by outgoingness, high energy, and/or talkativeness. In general, the term refers to a state of being where someone “recharges,” or draws energy, from being with other people; the opposite—drawing energy from being alone—is known as introversion.| Psychology Today