||The concept of social isolation in this article is distinct from, and not to be confused with, social isolation model, loner, solitude, hermit, seclusion, recluse or emotional isolation.|
Social isolation refers to a complete or near-complete lack of contact with people and society for members of a social species. It is not the same as loneliness rooted in temporary lack of contact with other humans. Social isolation can be an issue for anyone despite their age, each age group may show more symptoms than the other as children are different from adults.
Social isolation takes fairly common forms across the spectrum regardless of whether that isolation is self-imposed or is a result of a historical lifelong isolation cycle that has simply never been broken, which also does exist. All types of social isolation can lead to staying home for days or weeks at a time; having no communication with anyone including family or even the most peripheral of acquaintances or friends; and willfully avoiding any contact with other humans when those opportunities do arise. Even when socially isolated people do go out into public and attempt social interactions, the social interactions that succeed — if any — are brief and at least somewhat superficial.
True social isolation over years and decades tends to be a chronic condition affecting all aspects of a person's existence. These people have no one to turn to in personal emergencies, no one to confide in during a crisis, and no one to measure their own behavior against or learn etiquette from — referred to sometimes as social control, but possibly best described as simply being able to see how other people behave and adapt oneself to that behavior.
Lack of consistent human contact can also cause conflict with the (peripheral) friends the socially-isolated person might occasionally talk to, or might cause interaction problems with family members. It may also give rise to uncomfortable thoughts and behaviors within the person.
The day to day effects of this type of deep-rooted social isolation can mean:
- staying home for days or even weeks at a time due to lack of access to social situations rather than a desire to be alone;
- both not contacting, and not being contacted by, any acquaintances, even peripherally; for example, never being called by anybody on the telephone and never having anyone visit one's residence;
- a lack of meaningful, extended relationships, and especially close intimacy (both emotional and physical).
Social isolation also affects the community, especially when it involves the elderly; in the United States, Canada, and United Kingdom, for example, a significant sector of the elderly who are in their 80s and 90s are brought to nursing homes if they show severe signs of social isolation. Other societies such as many in East Asia, and also the Caribbean (like Jamaica) and South America, do not normally share the tendency towards admission to nursing homes, preferring instead to have children and extended-family of elderly parents take care of those elderly parents until their deaths.
Social isolation is potentially both a cause and a symptom of emotional or psychological challenges. As a cause, the perceived inability to interact with the world and others can create an escalating pattern of these challenges. As a symptom, the periods of isolation can be chronic or episodic, depending upon any cyclical changes in mood, especially in the case of clinical depression, and possibly bipolar disorders. If social isolation in a particular person is lifelong, historical, patterned, unbroken, and chronic (i.e. from extremely young childhood all the way through full adulthood), it tends to perpetuate itself even if the person actually does not fundamentally desire to be alone, and sometimes even if the person also makes good-faith individual efforts to socialize. In the case of mood-related isolation, the individual may isolate during a depressive episode only to 'surface' when their mood improves. The individual may attempt to justify their reclusive or isolating behavior as enjoyable or comfortable for them rather than displaying to others disordered thinking and response. There can be an inner realization on the part of the individual that there is something wrong with their isolating responses which can lead to heightened anxiety. Relationships can be a struggle, the individual 'reconnects' with others during a healthier mood episode only to have it dashed during a subsequent low or depressed mood where they will isolate.
Isolation increases the feelings of loneliness and depression, fear of other people, or even create a more negative self-image. There is a realization in the individual that their isolating is not 'normal behavior' and can create the feeling that there is a whole world going on that they are not or unable to be a part of. A feeling of being detached can create at times an inner panic.
Substance abuse can also be an element in isolation, whether a cause or a result. This can and many times does coincide with mood related disorders, but also with loneliness. According to a study that was conducted by Kimmo Herttua, Pekka Martikainen, Jussi Vahtera, and Mika Kivimäki, living alone can increase rates of being socially isolated and leading individuals to turn to the use of alcohol and other substances. This comorbid combination of isolation and substance abuse can compound the isolating dynamic to serious proportions.
Social isolation can begin early in life. An example would be a sensitive child who find him or herself bullied or ridiculed. This is a time when the ego is not fully developed. Sigmund Freud proposed the idea of a person's self, physically and mentally. During this time of development, a person may become more preoccupied with feelings and thoughts of their individuality that are not easy to share with other individuals. This can be a result from feelings of shame, guilt, or alienation during childhood experiences.
Whether new technologies such as the Internet and mobile phones exacerbate social isolation (of any origin) is a debated topic among sociologists. With the advent of online social networking communities, there are increasing options to become involved with social activities that do not require real-world physical interaction. Chat rooms, message boards, and other types of communities are now meeting the need for those who would rather stay home alone, yet still develop communities of online friends. But those who oppose leading one's life primarily or exclusively online claim that virtual friends are not adequate substitutes for real-world friends, and research[who?] does suggest that individuals who substitute virtual friends for physical friends become even lonelier and more depressive than before.
Technology dependence is a problem in today's society. Not only can internet, phones, video game systems, etc. be an issue for interaction between beings but so can technology that is used for critical health issues. Andrea Cockett conducted a study, which focused on children that are ventilator dependent and consequences that have been led by dependence upon technology. These technologies are keeping the children alive but also isolating them from what is beyond the hospital and home. Many parents agreed that home was the most appropriate place for their child to be cared for. However, children are being isolated from the outside world. This can lead to emotional burdens that hinder a child's ability to form relationships with other individuals.
Social isolation can also coincide with developmental disabilities. Individuals with learning impairments may have trouble with social interaction. The difficulties experienced academically can greatly impact the individual's esteem and sense of self-worth. An example would be the need to repeat a year of school. During the early childhood developmental years, the need to fit in and be accepted is paramount. Having a learning deficit can in turn lead to feelings of isolation, that they are somehow 'different' from others.
The elderly have their own set of isolating dynamics. Increasing frailty, possible declines in overall health, absent or uninvolved relatives or children, economic struggles can all add to the feeling of isolation. Among the elderly, childlessness can be a cause for social isolation. Whether their child is deceased or they didn't have children at all, the loneliness that comes from not having a child can cause social isolation. Retirement, the abrupt end of daily work relationships, the death of close friends or spouses can also contribute to social isolation. 
The loss of a loved one also contributes to social isolation. For example, if an individual loses a spouse, they likely lose their primary social support. They now must find some other kind of support to help them through this fragile time. Studies have shown that widows who keep in contact with friends or relatives have better psychological health. A study conducted by Jung-Hwal Ha and Berit Ingersoll-Dayton concluded that widows who had a lot of social contact and interactions lead to fewer depressive symptoms. During a time of loss social isolation is not beneficial to an individual's mental health.
Although objective social isolation can affect perceived social isolation (loneliness), it is perceived isolation that is more closely related to the quality than quantity of social interactions. This is in part because loneliness is influenced by factors unrelated to objective isolation, including genetics, childhood environment, cultural norms, social needs, physical disabilities, and discrepancies between actual and desired relationships. Accordingly, perceived social isolation predicts various outcomes above and beyond what is predicted by objective isolation. Research by Cole and colleagues showed that perceived social isolation is associated with gene expression — specifically, the under-expression of genes bearing anti-inflammatory glucocorticoid response elements and over-expression of genes bearing response elements for pro-inflammatory NF-κB/Rel transcription factors. This finding is paralleled by decreased lymphocyte sensitivity to physiological regulation by the hypothalamic pituitary adrenocortical (HPA) axis in lonely individuals, which together with evidence of increased activity of the HPA axis, suggests the development of glucocorticoid resistance in chronically lonely individuals.
Throughout the past two decades social isolation has increased, causing family interaction and communication to decrease. Individuals lack the feeling of being able to approach others in order to find comfort, seek advice, or physically and emotionally network with.
- Health and disabilities - People may be embarrassed by their disabilities or health issues such that they have a tendency to isolate themselves to avoid social interaction out of fear that they would be judged or stigmatized.
- Loss of a spouse - Once a spouse has died, the other person may feel lonely and depressed.
- Living alone.
- Aging - Once a person reaches an age where issues such as cognitive impairments and disabilities arise, they are unable to go out and socialize.
- Transportation issues - If the person doesn't have transportation to attend gatherings or to simply get out of the house, they have no choice but to stay home all day which can lead to those feelings of depression.
- Societal adversity - Desire to avoid the discomfort, dangers, and responsibilities arising from being among people. This can happen if other people are sometimes, or often, rude, hostile, critical or judgmental, crude, or otherwise unpleasant. The person would just prefer to be alone to avoid the hassles and hardships of dealing with people.
According to James House, when it comes to physical illness, "The magnitude of risk associated with social isolation is comparable with that of cigarette smoking and other major biomedical and psychosocial risk factors. However, our understanding of how and why social isolation is risky for health — or conversely — how and why social ties and relationships are protective of health, still remains quite limited."
The research of Brummett shows that social isolation is unrelated to a wide range of measures of demographic factors, disease severity, physical functioning, and psychological distress. Hence, such factors cannot account for or explain the substantial deleterious effects of social isolation.
However, they also show that isolated individuals report fewer interactions with others, fewer sources of psychological/emotional and instrumental support, and lower levels of religious activity. The obvious question is whether adjusting for one or more of these factors reduces the association of social relationships/isolation with health, and which factors constitute the active ingredient in social isolation producing its deleterious effects on health.
There are things people can do to help those who are socially isolated. According to Boufford, "many cities, with encouragement from the World Health Organization, are developing age-friendly initiatives for all seniors, regardless of their location. Specifically, they seek to improve transportation, housing, social inclusion, community support and health services." In addition, paying attention to the person who is socially isolated can make a difference. Taking a day to spend time with someone can change their perspective on life.
A common sense notion frequently expressed is that social relationships beneficially affect health, not only because of their supportiveness, but also because of the social control that others exercise over a person, especially by encouraging health-promoting behaviors such as adequate sleep, diet, exercise, and compliance with medical regimens or by discouraging health-damaging behaviors such as smoking, excessive eating, alcohol abuse, or drug abuse. Another hypothesis is that social ties link people with diffuse social networks that facilitate access to a wide range of resources supportive of health, such as medical referral networks, access to others dealing with similar problems, or opportunities to acquire needed resources via jobs, shopping, or financial institutions. These effects are different from support in that they are less a function of the nature of immediate social ties but rather of the ties these immediate ties provide to other people. Also, social isolation can sometimes go hand in hand with mental illness because of behaviors mentioned beforehand.
Yet another hypothesis proposed by Cacioppo and colleagues is that the isolation of a member of social species has detrimental biological effects. In a 2009 review, Cacioppo and Hawkley noted that the health, life, and genetic legacy of members of social species are threatened when they find themselves on the social perimeter. For instance, social isolation decreases lifespan in the fruit fly; promotes obesity and Type 2 diabetes in mice; exacerbates infarct size and edema and decreases post-stroke survival rate following experimentally induced stroke in mice; promotes activation of the sympatho-adrenomedullary response to an acute immobilization or cold stressor in rats; delays the effects of exercise on adult neurogenesis in rats; decreases open field activity, increases basal cortisol concentrations, and decreases lymphocyte proliferation to mitogens in pigs; increases the 24 hr urinary catecholamines levels and evidence of oxidative stress in the aortic arch of rabbits; and decreases the expression of genes regulating glucocorticoid response in the frontal cortex of piglets.
A person showing the following signs may be socially isolated: depression, mental disorder, mood disorder, inability to connect with others, refusal to leave the house, and avoiding people in addition to being anxious, nervous and keeping the door closed to lessen the ability of others to reach them.
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