Do we really need friends to be happy?
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Why do we need friends for happiness and health?
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Do we really need friends to be happy? Thanks for asking. Throughout our lives, we meet new people at school, at work, or through our hobbies.
What does the Harvard Study of Adult Development reveal about relationships?
Some remain acquaintances, while others become close friends. Now maintaining those relationships isn't always easy, but evidence has shown just how important having friends can be, given that loneliness can affect both our happiness and health. How do friends play in our happiness levels then? One important study to consider is the Harvard Study of Adult Development. It was launched nearly a century ago in 1938, and it's one of the world's longest-running studies of adult life. Researchers followed hundreds of people to investigate what contributes to a happy and healthy life. One of their clearest findings was that the quality of our relationships matters. People who were more satisfied with their relationships at 50 tended to be healthier at 80.
Relationship satisfaction was even a better predictor of later physical health than their cholesterol levels in middle age. Of course, that doesn't mean friendship guarantees happiness or good health, and the original participants represented a relatively narrow section of American society.
Is having many friends better than a few close ones?
Nevertheless, the central finding is supported by wider international research. The World Health Organization says social connection can help protect our health. Persistent loneliness and isolation, by contrast, are associated with depression, anxiety, heart disease, cognitive decline, and premature death. Lots of friends? Not necessarily, there's no magic number. Some people enjoy a large social circle, while others prefer a few close relationships. What matters is whether we feel supported and have someone we can rely on. That person could be a friend, relative, partner, or another trusted figure. Casual connections can help too. Psychologists use the term weak ties to describe acquaintances, colleagues, neighbors, and other people we see occasionally.
How do weak ties and casual connections boost our sense of belonging?
Now, despite the term weak, Research suggests these interactions actually make a strong contribution to happiness and belonging. A brief chat with a colleague or somebody in a local shop may seem insignificant, but it can absolutely help us feel connected to the community. It's also important to distinguish between being alone and feeling lonely. Some people actually enjoy solitude, and on the other hand, it's totally possible to feel lonely even when surrounded by people. You could say that loneliness is the gap between the connection we have and the connection we want. Affected by loneliness? Yes, and it isn't only older people like you might think. In fact, they're not even the most affected age group.
The UK government's Community Life Survey for 2024-25 found that 7% of adults in England felt lonely often or always.
Who is most affected by loneliness and what are the latest statistics?
Among 16-24-year-olds the figure was 9%, compared to just 4% among people aged 65 to 74. Loneliness can follow many life events, such as bereavement, moving home, relationship breakdown, unemployment, or poor health. Remote work may also remove casual interactions from our day. Digital communication helps people stay in touch, but having lots of messages or followers doesn't necessarily mean feeling emotionally supported. If loneliness is becoming overwhelming, speak to someone you trust, join an activity based on a shared interest, or ask a GP about support. The goal doesn't have to be fine. Finding a large group of friends, one regular activity or a few small conversations can be a manageable start.
If you're experiencing thoughts of suicide or self-harm, call Samaritans free on 116-123. In an immediate emergency, call 999. There you have it.
What practical steps can we take to combat loneliness and build support?
Now you know why having friends can make us happier.
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Chapters
6 chapters
1
Why do we need friends for happiness and health?
0:00–0:43
2
What does the Harvard Study of Adult Development reveal about relationships?
0:43–1:52
3
Is having many friends better than a few close ones?
1:52–2:46
4
How do weak ties and casual connections boost our sense of belonging?
2:46–3:42
5
Who is most affected by loneliness and what are the latest statistics?
3:42–4:47
6
What practical steps can we take to combat loneliness and build support?
4:47–5:34