Understanding Loneliness

Psychologist John Cacioppo writes that people who become trapped in loneliness "have not done anything wrong.” Not one of us is immune to loneliness any more than we are immune to hunger or physical pain.

Loneliness is one of the most common human experiences, but many people carry it in silence. Because loneliness is often discussed as though it were simply a matter of being alone, people sometimes wonder what is wrong when they feel lonely in the presence of others. They may find themselves surrounded by coworkers, family members, neighbors, classmates, or even friends, while sensing that something important is still missing. The experience can be difficult to explain, particularly when life appears full to the outside world.

Rollo May spent much of his career exploring the emotional realities of being human, and one of his most enduring observations was that loneliness and solitude are not the same experience.

A person may spend a peaceful afternoon alone with a book, in a garden, with a beloved pet, or with their own thoughts, and feel deeply connected to life. Someone else may leave a crowded gathering carrying an ache that is difficult to name.

Loneliness may have little to do with the number of people nearby and more to do with whether a person feels seen, understood, known, and connected.

For many people, loneliness begins with the feeling that an important part of themselves remains unseen. They may share conversations, complete responsibilities, exchange greetings, and participate in daily life, yet still have a sense that few people truly understand what they are experiencing beneath the surface. The longing is often less about company than connection.

Human beings are remarkably resilient, yet they are also profoundly relational. From our earliest days, we learn about ourselves through our interactions with others, discovering safety, comfort, encouragement, and a sense of belonging within relationships that help us feel anchored in the world. When those connections are missing, disrupted, or feel out of reach, loneliness often follows naturally.

Sometimes loneliness arrives after a significant loss. At other times, it appears during periods of transition, when familiar relationships change, or life begins moving in a different direction. There are also moments when it emerges despite the presence of caring people, particularly when a person feels misunderstood, different from those around them, or unable to share an important part of their experience.

One of the more difficult aspects of loneliness is that it can gradually influence the stories people tell themselves about belonging. Research by John Cacioppo suggests that when loneliness becomes more persistent, people often become increasingly alert to signs of rejection, exclusion, or disconnection. This heightened sensitivity develops as an understandable attempt to protect against further hurt, yet it can also make ordinary social situations feel more uncertain than they truly are. After enough disappointments, a person may begin assuming that reaching out will make little difference, that deeper connection is something other people find more easily, or that their own experiences are somehow too different to be understood. These conclusions often feel convincing, especially when they have been reinforced by painful experiences, yet they are not always the whole story.

Julian Rotter's work reminds us that past experiences naturally shape what people come to expect from future relationships. When earlier attempts at closeness have ended in disappointment, misunderstanding, or rejection, it is understandable that a person may begin to expect similar outcomes again. Those expectations can quietly influence how someone approaches new relationships, sometimes leading them to protect themselves by holding back, revealing less of themselves, or assuming that deeper connection is unlikely. Although these expectations often grow from real experiences, they do not determine what future relationships will become.

Imagine someone who attends social gatherings regularly and knows many people. Conversations happen easily enough, smiles are exchanged, and others might describe the person as friendly and well connected. Yet each time the gathering ends, they return home with the feeling that nobody truly knows them. The topics that matter most remain untouched.

The questions, worries, hopes, or experiences closest to their heart rarely find their way into conversation, and over time, the person begins wondering whether genuine connection is something they will ever experience.

In counseling, people often discover that loneliness becomes lighter when it is spoken aloud. What once felt like a private burden can begin transforming into a shared human experience, and the simple act of being deeply heard may create a sense of connection that has been missing for quite some time. As trust develops, many people also begin exploring new ways of building relationships that allow more of their authentic selves to be known.

As people experience relationships in which they feel accepted and understood, many also begin developing greater confidence in their ability to connect with others. Albert Bandura's work suggests that these experiences of success can gradually strengthen a person's belief in their ability to build meaningful relationships. Small moments of genuine connection often become the foundation for larger changes over time.

A different person may find themselves spending increasing amounts of time alone and worry that solitude itself has become the problem. Yet as they reflect more deeply, they begin to notice moments of contentment that arise during a walk, while listening to music, tending a garden, creating art, reading, praying, or sitting quietly with a pet. What they miss is not the absence of constant company but the absence of meaningful connection, and recognizing that distinction begins to change the way they understand their experience.

This is where Rollo May's observation becomes especially valuable. Solitude can provide room for reflection, creativity, restoration, and self-discovery, while loneliness often carries a longing for connection that has yet to be met. Although the two experiences sometimes appear together, they are not interchangeable.

Most people encounter loneliness at various points throughout their lives. Rather than viewing it as a personal failing, it may be more helpful to see it as a signal that something deeply human is asking for attention—a desire for understanding, belonging, companionship, or authentic connection.

My hope is that understanding loneliness creates a little more compassion for both ourselves and others. Nearly everyone knows what it feels like to long for connection, even if they rarely speak about it, and many people have private experiences that remain invisible to those around them. The longing to be known is part of being human. And while that longing may never disappear completely, neither does the human capacity to find one another in ways that bring comfort, understanding, and a renewed sense of belonging.

Further Reading and Research

John T. Cacioppo

John T. Cacioppo was a prominent social neuroscientist at the University of Chicago, known for his groundbreaking research on loneliness and its profound effects on mental and physical health. His work emphasized the importance of social connections for overall well-being, highlighting that the effects of loneliness can be as detrimental as those caused by obesity or smoking.

John Bowlby

Bowlby developed Attachment Theory, one of the most influential frameworks for understanding human relationships. His work emphasized the importance of secure emotional bonds throughout life and helped establish the idea that connection is a fundamental human need rather than simply a preference.

Mary Ainsworth

Building upon Bowlby's work, Ainsworth's research on attachment patterns deepened our understanding of how people seek connection, comfort, and security within relationships. Her observations continue to influence contemporary approaches to relationships, attachment, and loneliness.

Rollo May

Rollo May was an existential psychologist whose work explored loneliness, solitude, meaning, authenticity, and the challenges of being human. He distinguished between loneliness and solitude, emphasizing that time spent alone can sometimes foster creativity, reflection, and personal growth, while loneliness often reflects an unmet need for meaningful connection.

Albert Bandura

Bandura's work on social learning and self-efficacy highlighted the ways beliefs influence behavior and social experiences. His research helps illuminate how loneliness can affect expectations about belonging, connection, and the likelihood of reaching out to others.

Erik Erikson

Erikson's theory of psychosocial development explored the importance of relationships throughout the lifespan. His stage of Intimacy vs. Isolation remains particularly relevant to understanding loneliness, belonging, and the development of meaningful connections.

Julian Rotter

Rotter's work on locus of control explored how people interpret events and perceive their ability to influence outcomes. His ideas contribute to understanding how individuals make sense of social experiences and relationships.

Solomon Asch

Asch's famous conformity studies demonstrated the powerful influence of social groups on human behavior. His work provides valuable insights into belonging, social pressure, acceptance, and the desire to fit in with others.

Selected Books and References

Ainsworth, M. D. S., Blehar, M. C., Waters, E., & Wall, S. (1978). Patterns of attachment: A psychological study of the strange situation. Lawrence Erlbaum Associates.

Ainsworth, M. D. S. (1979). Infant–mother attachment. American Psychologist, 34(10), 932–937.

Asch, S. E. (1951). Effects of group pressure upon the modification and distortion of judgments. In H. Guetzkow (Ed.), Groups, leadership, and men (pp. 177–190). Carnegie Press.

Asch, S. E. (1956). Studies of independence and conformity: I. A minority of one against a unanimous majority. Psychological Monographs: General and Applied, 70(9), 1–70.

Bandura, A. (1977). Self-efficacy: Toward a unifying theory of behavioral change. Psychological Review, 84(2), 191–215.

Bandura, A. (1997). Self-efficacy: The exercise of control. W. H. Freeman.

Bowlby, J. (1969). Attachment and loss: Vol. 1. Attachment. Basic Books.

Bowlby, J. (1973). Attachment and loss: Vol. 2. Separation: Anxiety and anger. Basic Books.

Bowlby, J. (1980). Attachment and loss: Vol. 3. Loss: Sadness and depression. Basic Books.

Cacioppo, J. T., & Cacioppo, S. (2018). The growing problem of loneliness. The Lancet, 391(10119), 426.

Cacioppo, J. T., & Patrick, W. (2008). Loneliness: Human nature and the need for social connection. W. W. Norton & Company.

Cacioppo, J. T., Hawkley, L. C., Ernst, J. M., et al. (2006). Loneliness within a nomological net: An evolutionary perspective. Journal of Research in Personality, 40(6), 1054–1085.

Erikson, E. H. (1950). Childhood and society. W. W. Norton & Company.

Erikson, E. H. (1968). Identity: Youth and crisis. W. W. Norton & Company.

Hawkley, L. C., & Cacioppo, J. T. (2010). Loneliness matters: A theoretical and empirical review of consequences and mechanisms.

Annals of Behavioral Medicine, 40(2), 218–227.

May, R. (1953). Man's search for himself. W. W. Norton & Company.

May, R. (1969). Love and will. W. W. Norton & Company.

Rotter, J. B. (1954). Social learning and clinical psychology. Prentice-Hall.

Rotter, J. B. (1966). Generalized expectancies for internal versus external control of reinforcement. Psychological Monographs: General and Applied, 80(1), 1–28.