#03 Are we living in an epidemic of loneliness?

The heightened risk of loneliness during the COVID-19 pandemic has brought increased attention to the issue, leading to loneliness and social isolation being recognized as serious public health concerns.A study conducted by the IFO Institute and the European Commission reveals that in 2016, 12 % of people in the European Union frequently experienced the feeling of loneliness. During the initial months of lockdown, this figure increased to 25%. 2

Source: Loneliness in Europe before and during the COVID-19 pandemic 2
Source: Loneliness in Europe before and during the COVID-19 pandemic 2

Some researchers even claim that we are living in an epidemic of loneliness right now. However, loneliness is not a modern-day phenomenon. A study by the American Psychological Association analyzed 345 studies comprising 437 independent samples, with a total of 124,855 young adults completing the UCLA Loneliness Scale between 1976 and 2019. Over these 43 years, the study revealed a gradual increase in loneliness. Even though there was constant increase in loneliness, talking about an epidemic of loneliness might be exaggerated. 3

Source: Is Loneliness in Emerging Adults Increasing Over Time? A Preregistered Cross-Temporal Meta-Analysis and Systematic Review 3

Who is at highest risk for loneliness?

Age is a frequently studied aspect in connection with loneliness. For a long time, the focus was on older people, as they have a particularly high risk of being affected by loneliness. However more recent studied showed that there is a u-shaped relationship between age and loneliness, because also young people are highly affected by loneliness these days. 4

Examining socio-economic factors such as income, health, and living conditions, several studies indicate that individuals with lower income levels are more likely to experience loneliness. Similarly, those who report poor health tend to feel lonelier compared to individuals with good health. Furthermore, research shows that individuals living alone are more likely to experience loneliness. 2 5  

Source: Health Survey for England 2021: Loneliness and Wellbeing 5
Source: Health Survey for England 2021: Loneliness and Wellbeing 5

Additionally, technology, particularly social media, has a significant impact on our relationships and social interactions. Even though we are more connected than ever, people tend to feel more lonely nowadays. Excessive social media use (in the study from the European commission excessive means two or more hours per day on social media) can contribute to feelings of loneliness, a fear of missing out, and a lack of meaningful social connection. 6 7

Source: EU Loneliness Survey, 2022 6

Since several studies show the negative impact of loneliness on health and its growing significance in public health, several governments and institutions — such as the government of United Kingdom and Japan, the Ministry of Health in the Netherlands, and the European Commission — are developing strategies to combat loneliness. 

The next blog post explains which impact loneliness has on our health.


Sources

[1] JRC, „Loneliness and social connectedness: insights from a new EU-wide survey“, 2023.

[2] J. Baarck, B. D’Hombres und G. Tintori, „Loneliness in Europe before and during the COVID-19 pandemic“, Health Policy, Bd. 126, Nr. 11, S. 1124–1129, Sep. 2022, doi: 10.1016/j.healthpol.2022.09.002.

[3] S. Buecker u. a., „Is Loneliness in Emerging Adults Increasing Over Time? A Preregistered Cross-Temporal Meta-Analysis and Systematic Review“, journal-article, 2021. doi: 10.1037/bul0000332.

[4] S. V. Schnepf, B. D’Hombres und C. Mauri, Hrsg., Loneliness in Europe. 2024. doi: 10.1007/978-3-031-66582-0.

[5] NHS Digital, Health Survey for England 2021: Loneliness and Wellbeing. Available: https://digital.nhs.uk/data-and-information/publications/statistical/health-survey-for-england/2021-part-2/loneliness-and-wellbeing. Accessed: Jan. 7, 2025.

[6] B. Dhombres, M. Kovacic, S. V. Schnepf, and Z. Blaskó, Loneliness and social media use in the European Union, European Commission, 2024, JRC135806.

[7] V. H. Murthy, „Our Epidemic of Loneliness and Isolation: The U.S. Surgeon General’s Advisory on the Healing Effects of Social Connection and Community“, 2023. [Online]. Verfügbar unter: https://www.hhs.gov/sites/default/files/surgeon-general-social-connection-advisory.pdf

#02 Loneliness?

Loneliness is a universal human experience, yet it manifests in ways that are deeply personal and varied. What exactly is loneliness, and how can we better understand its dimensions and impact?

What is Loneliness?

Several studies describe a different definition of loneliness. As a discrepancy between the social interactions and relationships an individual desires and those they currently experience, which leads to a negative feeling of being alone. Here, however, being alone is not the same as feeling lonely. It is described as a perceived lack of social contact, 2 or as the unavailability or unwillingness of others to engage in social and emotional experiences 3, or as a condition in which an individual can interact with others but does not do it. 4

Loneliness is a multidimensional phenomenon due to its variations in intensity, causes, and circumstances. Therefore, it can be distinguished between three types of loneliness: emotional loneliness, social loneliness and collective loneliness.

Emotional loneliness “results from the lack of a close, intimate attachment to another person”. Someone, like a spouse or best friend, whom one can rely on for emotional support during hard times and validates one’s values.

Social loneliness is the absence of quality relationships with family or a group of friends who share the same interests and activities. 6  

Collective loneliness pertains to an individual’s sense of disconnection from their valued social identities or “active network” (e.g., group, school, team, or national identity), where one can engage with like-minded others, even if only at a distance, within the broader social context. 7

How to measure Loneliness?

Since loneliness is a subjective experience, its measurement can be challenging. It cannot be directly observed, and there are no objective indicators to assess it. As a result, loneliness is typically measured through self-reported methods, such as surveys and questionnaires. There are two types of measuring loneliness: direct and indirect. 

Direct Measures: People are asked directly if they are feeling lonely in a certain period of time. 

Indirect Measures: People are asked several questions but without using words like lonely or loneliness. The questions are about feelings and experiences related to loneliness. Like the wish to have someone to rely on or talk to about private topics. 

Over the time several scales have been developed for measuring loneliness. The two most known ones are the “University of California Los Angeles Loneliness Scale” created by Russell and Peplau and the and the “De Jong Gierveld Loneliness Scale” created by De Jong Gierveld and Kamphuis. 8

University of California Los Angeles Loneliness Scale (UCLA Loneliness Scale)

The survey consists of 20 statements, and respondents are required to indicate how frequently each statement applies to them. O: I often feel this way, S: I sometimes feel this way, R: I rarely feel this way, N: I never feel this way.  9

Source: D. W. Russell, L. A. Peplau: Developing a Measure of Loneliness
De Jong Gierveld Loneliness Scale

The original survey consists of eleven statements, in 2000 they created a shortened version with only six statements. Three of the statements are positively formulated and the other three are negatively formulated. The statements need to be answered with “no”, “more or less” or “yes”. This survey also considers the difference between emotional loneliness and social loneliness. 8

6 questions: 

  • I experience a general sense of emptiness.
  • I miss having people around.
  • I often feel rejected.
  • There are plenty of people I can rely on when I have problems.
  • There are many people I can trust completely.
  • There are enough people I feel close to.

What is Social isolation?

Loneliness and social isolation are frequently discussed in tandem or treated as synonymous concepts. 2 However, loneliness describes a subjective experience, whereas social isolation is an objective situation where someone is alone or lacks meaningful social interactions. 10 A person who has little contact to the family, friends or other people of a community is socially isolated. 11

Since belonging is seen as a fundamental human motivation. 12 A core aspect shared by most individuals is the need for love, acceptance, and understanding, which often motivates significant efforts to avoid experiencing loneliness. 


Sources:

[1] L. A. Peplau and D. Perlman, “Loneliness,” in Encyclopedia of Mental Health, H. S. Friedman, Ed., vol. 1, San Diego: Academic Press, 1998, pp. 571–581.

[2] G. C. Wenger, The Supportive Network: Coping with Old Age, 1st ed. Allen and Unwin, London, 1984

[3] K. S. Rook, “Research on social support, loneliness, and social isolation: Toward an integration,” Review of Personality & Social Psychology, vol. 5, pp. 239–264, 1984.

[4] S. Shalev, “On loneliness and alienation,” Isr. J. Psychiatry Rel. Sci., vol. 5, pp. 236–245, 1988.

[5] L. M. Heinrich, E. Gullone und School of Psychology, Psychiatry, and Psychological Medicine, Faculty of Medicine, Nursing, and Health Sciences, Monash University, VIC 3800, Australia, „The clinical significance of loneliness: A literature review“, 2006. doi: 10.1016/j.cpr.2006.04.002.

[6] R. S. Weiss, Loneliness: the experience of emotional and social isolation. 1974. [Online]. Verfügbar unter: http://psycnet.apa.org/record/1974-22306-000

[7] S. Cacioppo, A. J. Grippo, S. London, L. Goossens und J. T. Cacioppo, „Loneliness: Clinical Import and Interventions“, The Author(s), 2015. doi: 10.1177/1745691615570616.

[8] S. V. Schnepf, B. D’Hombres und C. Mauri, Hrsg., Loneliness in Europe. 2024. doi: 10.1007/978-3-031-66582-0.

[9] D. W. Russell, L. A. Peplau, Iowa State University, University of California, Los Angeles und Letitia Anne Peplau, „Developing a Measure of Loneliness“, Journal Of Personality Assessment, Juli 1978, doi: 10.1207/s15327752jpa4203_11.

[10] J. de Jong Gierveld, “Developing and testing a model of loneliness,” J. Personal. Soc. Psychol., vol. 53, pp. 119–128, 1987.

[11] C. Victor, S. Scambler, J. Bond und A. Bowling, „Being alone in later life: loneliness, social isolation and living alone“, Reviews in Clinical Gerontology, Bd. 10, Nr. 4, S. 407–417, Nov. 2000, doi: 10.1017/s0959259800104101.[12] Baumeister, Roy F. and Leary, Mark R., “The Need to Belong: Desire for Interpersonal Attachments as a Fundamental Human Motivation”, Psychological Bulletin 1995, Vol. 117, No. 3, 497-529