People isolate socially due to major life changes (loss, retirement, divorce), mental health struggles (depression, anxiety, trauma), physical health issues (disability, chronic pain, mobility loss), external factors (discrimination, poverty, lack of transport), or as a coping mechanism for feeling overwhelmed, shame, or a disconnect from others. It can stem from a need for safety, a preference for internal worlds, or the inability to connect due to circumstances.
“Many things can contribute to social isolation: loss of friends due to death, a new illness making social connections difficult to maintain, a caregiver responsibility, a traumatic event or just life change can all be causes,” Dr. Hollmann said.
One of the conditions that often cause social isolation is mental health disorders. Similar to those with chronic illnesses, people with mental health disorders often find it hard to build social relationships with those around them. This can lead to social isolation.
Social isolation can lead to feelings of loneliness, fear of others, or negative self-esteem. Lack of consistent human contact can also cause conflict with (peripheral) friends. The socially isolated person may occasionally talk to or cause problems with family members.
Often, mental health symptoms such as depression can cause someone to isolate themselves. When dealing with consistent negative thought patterns and low energy, it is common for people to use self-isolation to cope in response to depression.
You Have Low Self-Confidence
Low self-esteem can be a driver of social isolation and loneliness. Social interactions can be stressful for people with low self-esteem and therefore they may tend to avoid being around others. However, this type of social isolation can often be detrimental and make the issue worse.
Traumatic events during this critical developmental phase, such as loss, neglect, or abuse, sow seeds of isolation that flourish in adulthood as loneliness. These traumas can lead to emotional dysregulation, making it difficult for individuals to form stable, meaningful connections in later life.
Isolation is a result of anxiety and depression in that some individuals use it as a self-induced coping mechanism to deal with excessive worry and avoid human interaction. For others, isolation is a key driver of anxiety and depression, craving the support and stimulation that socialisation provides.
Schizoid personality disorder
These people enjoy solitary activity and living away from social relationship. And these people are more interested in subjective inner mental world rather than objective outside world, avoid social activity, and do not reveal their emotion.
UCLA Loneliness Scale Version 326
Introverted personality types tend to find a great deal of fulfillment in their own thoughts, ideas, and reflections, making them more comfortable and familiar with solitude. Compared to Extraverts, they naturally require less social interaction to feel content.
Psychological symptoms, syndromes, and stressors can all influence whether an individual experiences loneliness or becomes socially isolated. Several of these factors, including anxiety and depression as well as cognitive factors such as dementia, are briefly discussed below.
Potential Harmful Effects and Risks of Having No Friends
Increased Loneliness – Feeling disconnected and isolated. Higher Stress Levels – Lack of emotional support can make coping harder. Lower Self-Esteem – Feeling unworthy or socially excluded. Reduced Happiness – Less social engagement can lead to sadness.
While there are 10 different personality disorders, many of them share similar symptoms.
Personality disorder : The various personality disorders associated with loneliness include borderline personality disorder and schizoid personality disorder [31,32] Intolerance of aloneness is considered a core feature of borderline personality disorder (BPD).
When someone feels lonely they are more likely to try to distract themselves with other things in their lives. Loneliness can also lead to materialism; lonely people will spend a lot of money on unnecessary things, to try to fill the hole in their lives.
The Psychological Impact of Social Isolation
It can lead to a host of mental health issues. One of the most significant impacts is the risk of developing depression. Isolation can intensify feelings of worthlessness and sadness. Anxiety is another common consequence, often accompanied by heightened stress levels.
Unhealed trauma often appears as chronic people-pleasing, relationship struggles, anxiety, self-destructive coping, or persistent shame and emptiness. Trauma rewires the hippocampus, amygdala, and prefrontal cortex, affecting memory, emotion regulation, decision-making, and social interactions.
Schedule regular family and friend meetings.
The phone is a great way to reach out and (virtually and hygienically) touch someone, but video calls are even better for the spirit. That's because seeing others' faces via video conferencing has been shown to reduce loneliness and depression.
When our brain then recognises similarities between our present situation and our past trauma (e.g. a colour, smell or noise), it can activate the fight, flight, freeze, flop or friend response, even if we're not currently in danger.