Isolation and Loneliness: Which One Is More Damaging to Our Long-term Health?

Just the other day, I was having a debate with a client about isolation versus loneliness.

He believed that social contact with others was a more significant predictor of well-being, whereas I thought how close we felt was more important for long-term health and happiness.

In other words, he thought that the number of interactions with others was more important than the quality of the relationships. I was solidly on team quality over quantity when it came to the type of relations that we wanted in our lives.

Because I wasn’t sure whose position was more supported by research, I further explored the issue.

My aim in writing this post is to define the difference between isolation and loneliness clearly. I will then highlight what the scientific evidence suggests.


The Merriam-Webster dictionary for English language learners defines isolation as:

“The state of being in a place or situation that is separate from others: the condition of being isolated”

Notice with this definition that there is no emotion connected to it. It merely indicates being isolated or separate from others.

Someone could choose to live a solitary life in isolation, and they may be happy with their choice. Alexandra de Steiguer, a shy individual who spent a lot of time alone when she was a child, chooses to isolate herself each winter as the sole ‘caretaker’ of the Oceanic Hotel on an island in New Hampshire. For the past 19 winters, she has spent months on the island without any guests.

de Steiguer states:

“it’s the thing I look forward to every year… When I come out here it’s like a homecoming. All those details of mainland life just fall away.”

She later says:

“Being alone (has) it’s advantages. It’s peaceful, and I can use my imagination…It makes me feel connected to life (and the natural world) in a way that I don’t normally feel.”

I don’t think I could do what she does, especially after watching ‘The Shining’, but each to their own.

Henry David Thoreau also glorified isolation and solitude in his famous book ‘Walden; or Life in the Woods’, stating:

“I find it wholesome to be alone the greater part of the time. To be in company, even with the best, is soon wearisome and dissipating. I love to be alone. I never found the companion that was so companionable as solitude.”

To write the book, Thoreau built a cabin near a pond in 1845 and lived there for the next two years.

He also highly valued simplifying life and reconnecting with nature:

“I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”

Before you think about selling up everything in Emile Hirsch’s ‘Into the Wild’ style and moving to the wilderness by yourself, it is important to highlight two things first:

  1. Thoreau walked into the nearby town of Concord, Massachusetts, almost daily and received visitors regularly.
  2. In ‘Into the Wild’, Hirsch’s character Christopher McCandless (**spoiler alert**) dies after eating a poisonous plant and concludes, “Happiness only real when shared.”

When solitude doesn’t involve nature and someone forces it upon you, it is often considered a devastating form of punishment. For this reason, various prisons use solitary confinement all over the world. However, prisons often violate human rights with solitary confinement. For example, the UN’s Mandela Rules state that humans must not be “without meaningful human contact for more than 15 consecutive days” (Martin, 2016).

People would rather be out in the prison yard where they could be stabbed or beaten up instead of in isolation, making me realise that humans are social creatures. Too much time in isolation can lead to active psychosis or acute suicidality in approximately one-third of the prisoners exposed to solitary confinement (Rodriguez, 2016). It can also lead to crippling social anxiety for prisoners once released into society (Breslow, 2014).

Consequently, I can’t help but feel that except for a few individual cases or people who are very introverted, too much isolation does more harm than good.


The Merriam-Webster dictionary defines loneliness as:

“Sad feelings that come from being apart from other people”

Notice the focus of the definition is on the feelings of sadness. Unlike isolation, loneliness suggests a deficit and a longing for companionship and a genuine connection that is not there.

As JD in ‘Scrubs’ suggests, it is also possible to feel lonely in a crowded space, even though you could not be considered isolated:

So what is more damaging — being separate from others, or feeling apart from others?

The Village Effect

Our brains light up during human interactions, primarily in-person face-to-face contact. Online communication and passively watching videos don’t have the same effect.

In her 2017 TED talk, Susan Pinker looks at different reasons why people live longer, including the role that relationships play:

As you can see in the graph above, minimising isolation and loneliness was more critical for staying alive than someone’s BMI, activity level, smoking and drinking behaviours, or even their heart health and blood pressure. While these factors are still relevant, having constant and close relationships is almost essential for our long-term health and longevity. Quantity, or level of integration, is seen as slightly more important than the closeness of relationships or quality — one point for my client.

Either way, in her book ‘The Village Effect’, Pinker suggests that we would all benefit from the type of interconnectedness that a small village lifestyle provides.

Pinker also believes that we would benefit more by increasing our in-person face-to-face contact and cutting back our use of technology to better connect with others.

Alone Together

Another fascinating book that I read in 2017 was ‘Alone Together’ by Sherry Turkle.

Turkle’s 2011 book also highlights the difference between how often we interact with other people and how sad, disconnected or alone we feel.

Her 2012 TED talk nicely summarises the negative aspects of technology and how it is leading to a greater sense of loneliness, even though it is easier than ever to remain in contact in some way or another:

As Turkle says:

“we use conversation with each other to learn how to have conversation with ourselves. A flight from conversation can really matter, because it can compromise our capacity for self reflection. For kids growing up, that skill is a bedrock for development.”

Turkle concludes:

“we’re lonely, but we’re afraid of intimacy. (We want) the illusion of companionship, without the demands of friendship.” (As a result, we) expect more from technology, and less from each other. (We imagine, that with technology), we’ll never have to be alone.”

It’s pretty scary stuff when you think about it. However, Turkle’s findings indicate that loneliness is more damaging than isolation, so one point for me.

Other Research

Social isolation is associated with:

  • an increased risk of depression (Hari, 2018),
  • more heart disease (Barth, Schneider, & von Känel, 2010),
  • a more significant risk of infectious illness (Cohen et al., 1997),
  • quicker cognitive decline (Bassuk, Glass & Berman, 1999),
  • elevated blood pressure (Shankar, McMunn, Banks & Steptoe, 2011),
  • more significant inflammation and metabolic responses to stress (Uchino, 2006), and
  • increased mortality (Eng, Rimm, Fitzmaurice & Kawachi, 2002)

Loneliness is associated with:

  • a higher risk of major depressive disorder (Hari, 2018),
  • increased blood pressure (Hawkley et al., 2010)
  • heightened cortisol (Cacioppo et al., 2000)
  • elevated inflammation (Steptoe et al., 2004), and
  • increased risk of heart disease, functional decline and early death (Patterson & Veenstra, 2010; Perissinotto, Stijacic Cenzer & Covinsky, 2012).

A 2013 study titled “Social Isolation, Loneliness and All-Cause Mortality in Older Men and Women” looked at 6,500 men and women over 51 from the English Longitudinal Study of Ageing between 2004 and March 2012. After taking demographics and health at baseline into account, social isolation significantly predicted later mortality, but loneliness did not (Steptoe, Shankar, Demakakos & Wardle, 2013).

Both loneliness and social isolation were associated with an increased risk of mortality. Still, reducing isolation was considered more critical in reducing the risk of premature death than loneliness. Furthermore, loneliness did not add to the risk of early death for already socially isolated people (Steptoe et al., 2013).

Final Outcome and Recommendations


I am surprised to be wrong, but I am glad to have a bias pointed out whenever it occurs. I have never felt socially isolated, but I have felt lonely, so my own experience must have influenced my opinion to some degree.

Social isolation is more hazardous to our long-term health than the subjective feeling of loneliness. However, both of these states are potentially damaging, and you should take steps if you are experiencing them regularly.

Lifeline recommends the following strategies for overcoming social isolation and loneliness:

  • “Connect or reconnect with friends and family — staying in contact with loved ones can prevent loneliness and isolation. If your family don’t live nearby, technology can help you keep in touch.
  • Get out and about — regular outings for social functions, exercise, visiting friends, doing shopping, or simply going to public places can help.
  • Get involved in your community — Try a new (or old) hobby, join a club, enrol in a study, or learn a new skill. Try looking online at your local TAFE/Community College, library or community centre for things in your area that might be interesting to you.
  • Volunteer — helping others is a great way to help yourself feel more connected.
  • Consider getting a pet –pets are wonderful companions and can provide comfort and support during times of stress, ill-health or isolation.
  • Get support — If loneliness and social isolation are causing you distress, you should discuss your concerns with a GP, counsellor or a trusted person.”

Engaging in treatment with a clinical psychologist could help if social anxiety or other mental health difficulties contribute to your isolation or loneliness. If not, the meetup website is an excellent resource for getting out there, trying some new things, and meeting some new people.

As George Valliant says:

“Joy is connection… the more areas in your life you can make connection, the better.”

Published by Dr Damon Ashworth

I am a Clinical Psychologist. I completed a Doctoral degree in Clinical Psychology at Monash University and a Bachelor of Behavioural Sciences and a Bachelor of Psychological Sciences with Honours at La Trobe University. I am passionate about the field of Psychology, and apply the latest empirical findings to best help individuals meet their psychological and emotional needs.

5 thoughts on “Isolation and Loneliness: Which One Is More Damaging to Our Long-term Health?

  1. I have been socially isolated in my mind most of my life. Even though I spend much time speaking with others such as at work, I find strong human interactions with many to be truly draining. Now that I am married to a woman who feels much the same way we both have found solace in each other in a way I have never known. We can spend hours together without saying a word and be very comfortable. To your point that total isolation can be dangerous, I agree. There was a time in my life I spent many days alone in the woods of Maine just like Thoreau and after awhile I longed just to see another human. But still I feel the draw of living away from others as my wife does, and when I retire it will be to a small village in the Philippines where she lives and we will live a somewhat isolated life together.

    Liked by 1 person

    1. Thanks for the thoughtful comment. I’m glad to hear that you have found someone with who you can have the connection that you want without being drained by it. I’m sure a lot of introverts would love to have the same thing. I’d take quality interactions over quantity any day!

      Liked by 1 person

  2. My mom, at 95 is in a Long Term Facility. They went into lockdown for 9 weeks. I actually thought the social isolation was going to kill her. Truly. We all phoned daily but with just basic contact occasionally she did not do well at all.

    Liked by 1 person

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