The Feeling Nobody Talks About: Loneliness, Mental Health and What We Can Do

Loneliness Awareness Week 2026 — 15 to 21 June

Loneliness is not simply about being alone. You can be surrounded by people and feel completely invisible. You can be in a long relationship, in a busy office, in a family home, and still feel utterly disconnected from the people around you.

It is a feeling that many people carry quietly, because it does not seem like the sort of thing you are supposed to admit. Yet it is more common than most of us assume, and the consequences for mental and physical health are serious.

This Loneliness Awareness Week (15 to 21 June 2026), with the theme 'Giving Loneliness a Voice', we want to do exactly that.

For employers and HR professionals: loneliness is a workplace issue as much as a personal one. Research consistently links social isolation to reduced engagement, higher absence rates and greater turnover. We address the workplace dimension specifically below.

What is loneliness?

Loneliness is the gap between the social connections you have and the ones you want or need. It is a subjective experience: two people with objectively similar social lives can have entirely different experiences depending on the quality of their relationships and what they need from them.

Researchers distinguish between two broad types. Social loneliness is the absence of a wider social network: friends, colleagues, community. Emotional loneliness is the absence of a close, intimate bond with another person. Both are meaningful, and both carry health risks, but they are not the same thing and do not always occur together.

Loneliness is not the same as solitude. Many people actively choose time alone and find it restorative. The distress of loneliness comes from unwanted isolation, from wanting connection that is not there.

How common is loneliness in the UK?

More common than most people realise.

The ONS Community Life Survey 2024 to 2025 found that around one in four adults in England reported feeling lonely often, always, or some of the time. Roughly one in sixteen reported feeling lonely often or always. ^[1]

Contrary to the assumption that loneliness is mainly a problem of older age, the data consistently shows high rates among young adults. People aged 16 to 29 report some of the highest levels of loneliness in the UK. ^[1] The stereotype of the isolated elderly person living alone does not reflect the full picture.

Loneliness does increase with age, particularly among older adults who have retired, lost partners, or become less mobile. But it cuts across age, geography and background.

Who is most affected?

What does loneliness do to mental health?

The relationship between loneliness and mental health is well-established. Loneliness is associated with significantly elevated rates of depression, anxiety and low self-worth. ^[2]

A meta-analysis by Mann et al. (2022) found that loneliness was associated with substantially higher odds of depression and anxiety across multiple studies. ^[3] The relationship appears to run in both directions: mental health problems can increase social withdrawal, which deepens isolation, which worsens the underlying condition.

Chronic loneliness also affects cognition. People who experience persistent loneliness show increased vigilance for social threat: they are more likely to interpret ambiguous situations negatively, which can make it harder to form and maintain new connections. This is not a character flaw; it is a neurological response to prolonged stress.

For employers, this matters because an employee who is chronically lonely is more likely to be struggling with concentration, motivation and emotional regulation, whether or not they have been formally diagnosed with anything.

The physical health consequences

Loneliness is not just a psychological experience. The physical consequences are significant.

Research has found associations between chronic loneliness and increased risk of cardiovascular disease, weakened immune response, disrupted sleep, and higher cortisol levels. ^[4,5]

A widely cited analysis by Holt-Lunstad et al. estimated that the mortality risk associated with social isolation is comparable to that of smoking around 15 cigarettes a day. ^[6] While that framing has been debated, the underlying finding, that social connection is a meaningful predictor of longevity, is replicated across multiple independent studies.

These are not marginal effects. Loneliness is a public health issue that costs the NHS in terms of both physical and mental healthcare.

The digital connection problem

Digital communication creates an illusion of connection that does not always translate into genuine belonging. Many studies find higher reported loneliness among heavy social media users, though the relationship is complex and causation runs in both directions.

Passive scrolling, in which you observe others' lives without meaningful interaction, appears to be particularly associated with feelings of social comparison and isolation. Active, reciprocal communication has less consistent negative effects.

This is relevant for remote workers. Being reachable via messaging apps is not the same as having social connection. A full inbox is not evidence of belonging.

For employers: why this is a workplace issue

Loneliness does not stay at home when someone goes to work. The Marmalade Trust has highlighted that workplace relationships are a primary source of social connection for many adults, and that the loss or absence of those connections, through remote work, reorganisation, redundancy, or a poor team culture, can contribute significantly to loneliness. ^[7]

The evidence on workplace loneliness and organisational outcomes points in one direction: lonely employees are less engaged, more likely to take sick leave, and more likely to leave. ^[8]

Remote and hybrid working has sharpened this issue. Managers cannot assume that someone who is online and responsive is connected and supported. Many people who work remotely report feeling more isolated than they did in office environments, even when they prefer the flexibility.

What employers can do

None of the following requires a significant budget. Most require cultural change more than financial investment:

• Create low-stakes social contact. Informal check-ins, team lunches, or even a standing ten minutes at the start of a call that is not about work tasks can maintain connection without feeling forced.
• Train line managers to notice withdrawal. A manager who can spot when someone has become quieter, less engaged, or more absent is often the first meaningful point of intervention.
• Take mental health first aid seriously. A trained mental health first aider in the workplace is equipped to have supportive initial conversations, signpost to professional help and reduce the stigma around asking for support.
• Review remote working practices. Flexibility is valuable, but the incidental social contact of shared physical space has real wellbeing value. Hybrid arrangements that include meaningful in-person time are worth protecting.
• Do not assume people will ask for help. Loneliness carries stigma. People who feel isolated often go to considerable lengths to conceal it.

What can individuals do?

Addressing loneliness is genuinely difficult because the state itself creates barriers to the behaviours most likely to help. Someone who feels disconnected is often less motivated and less confident to seek connection.

That said, there are approaches with reasonable evidence behind them:

• Quality over quantity. Research consistently finds that the depth of social connection matters more than the number of contacts. One or two meaningful relationships confer more benefit than a large but superficial social network.
• Structure helps. Joining a regular group, whether a running club, a community choir, a volunteer organisation, or anything with a consistent schedule, removes the activation cost of initiating contact each time.
• Online communities can play a role, particularly for people with mobility limitations or those in rural areas. They are not equivalent to in-person connection but are not worthless either.
• Volunteering has some of the strongest evidence among community-based interventions. It provides regular contact, purpose, and a shared task, all of which are features associated with meaningful connection.
• If loneliness is accompanied by depression, anxiety, or persistent low mood, a GP is the right starting point. Loneliness and mental illness are not the same thing, but they interact, and the mental health dimension may need to be addressed directly.

Loneliness Awareness Week 2026

The Marmalade Trust's annual campaign runs from 15 to 21 June 2026, with the theme 'Giving Loneliness a Voice'.

The aim is straightforward: to reduce the stigma around admitting loneliness and to encourage conversations that would otherwise not happen. Talking about it is not the same as fixing it, but it is a precondition for change, at both a personal and a policy level.

Employers can use the week to open conversations about connection and wellbeing within their teams. Individuals can use it as a prompt to think about their own social health, and that of the people around them.

Mental health first aid training for your team

For organisations looking to strengthen their wellbeing provision, mental health first aid training can help designated staff recognise distress, have supportive conversations and signpost colleagues towards appropriate support. If you would like to explore whether this approach might be right for your workplace, you can find out more about Constellation Training's Ofqual-regulated qualifications accredited by Nuco Training.

References

1. Office for National Statistics. Community Life Survey 2024 to 2025. London: ONS; 2025.

2. Mental Health Foundation. Loneliness: the state of the nation. London: Mental Health Foundation; 2022.

3. Mann F, Wang J, Pearce E, et al. Loneliness and the onset of new mental health conditions in the general population: A systematic review and meta-analysis. Lancet Psychiatry. 2022;9(7):567-577.

4. Cacioppo JT, Cacioppo S. Loneliness in the modern age: an evolutionary theory of loneliness (ETL). Advances in Experimental Social Psychology. 2018;58:127-197.

5. Steptoe A, Shankar A, Demakakos P, Wardle J. Social isolation, loneliness, and all-cause mortality in older men and women. Proceedings of the National Academy of Sciences. 2013;110(15):5797-5801.

6. Holt-Lunstad J, Smith TB, Layton JB. Social relationships and mortality risk: a meta-analytic review. PLOS Medicine. 2010;7(7):e1000316.

7. Marmalade Trust. About Loneliness Awareness Week 2026 [online]. Available at: https://www.lonelinessawarenessweek.org/ [accessed June 2026].

8. Ozcelik H, Barsade SG. No employee an island: workplace loneliness and job performance. Academy of Management Journal. 2018;61(6):2343-2366.