Loneliness is now killing more than 871,000 people a year — roughly 100 deaths every single hour, according to the World Health Organization. That is not a metaphor. That is a public health statistic. And it gives an ancient piece of wisdom, attributed to the Greek philosopher and mathematician Pythagoras, a surprisingly urgent edge.
The quote, widely attributed to Pythagoras, goes something like this: if you want to live a long life, keep “a little old wine and an old friend.” It sounds like the kind of thing you’d find stitched on a throw pillow. But one half of that advice now lines up directly with some of the most serious health research of our time.
The wine half? That remains far more complicated. But the friendship half? Science is catching up to what Pythagoras apparently understood more than two thousand years ago.
Why Pythagoras Still Gets Our Attention
Pythagoras is best remembered today for the theorem that bears his name — the one about right-angled triangles that most of us memorized in school and quietly forgot. But he was more than a mathematician. He was a philosopher who thought deeply about how human beings should live, what they should eat, how they should treat one another, and what made a life worth having.
That broader reputation is part of why quotes attributed to him carry a certain weight. When an ancient thinker whose ideas survived millennia says something about longevity, people tend to pause. The quote about wine and old friends has circulated for that reason — it feels like it comes from somewhere real and considered.
Whether Pythagoras said it in precisely those words is, as with many ancient attributions, difficult to verify with certainty. But the idea it contains is worth taking seriously on its own terms, especially when modern evidence starts filling in the gaps.
The Science Behind the “Old Friend” Half of the Equation
The World Health Organization addressed the issue of loneliness directly in June 2025, and the findings were striking. According to that WHO release, 1 in 6 people worldwide is currently affected by loneliness. The organization also confirmed that strong social connections are linked to better health outcomes and longer life.
The death toll associated with loneliness — more than 871,000 a year — puts it in a category that most people would not expect from something as seemingly soft as “not having enough friends.” But that is exactly where the research points. Social isolation is not a lifestyle preference with minor consequences. It is a measurable health risk.
This reframes the Pythagorean advice in a meaningful way. Keeping an old friend is not just pleasant. According to current public health thinking, it may be genuinely protective.
What the Numbers Actually Tell Us
| Finding | Detail | Source |
|---|---|---|
| Global loneliness rate | 1 in 6 people worldwide affected | WHO, June 2025 |
| Annual deaths linked to loneliness | More than 871,000 per year | WHO, June 2025 |
| Deaths per hour | Approximately 100 every hour | WHO, June 2025 |
| Social connection and longevity | Strong social ties linked to better health and longer life | WHO, June 2025 |
Those figures help explain why public health experts now treat social connection as a serious medical issue rather than a feel-good bonus. The scale of harm associated with loneliness is comparable to other recognized health risks that receive far more attention and funding.
- Loneliness affects people across all age groups, not just the elderly
- The WHO’s June 2025 findings treat social isolation as a global health priority
- Strong friendships — particularly long-standing ones — appear to offer measurable protective effects
- The connection between social bonds and longevity is now considered a serious area of public health, not merely anecdotal wisdom
The Wine Half: Where Ancient Advice Gets More Complicated
The friendship side has modern evidence behind it. The aged wine side does not enjoy the same straightforward endorsement from current health research.
That distinction matters. It would be easy to read the full quote as a blanket endorsement of both habits and walk away feeling validated. But the honest reading is more selective. The ancient world did not have access to the research we have now, and Pythagoras was working from observation and philosophy, not clinical trials.
What makes the quote interesting is not that it got everything right. It is that it got the friendship part right in a way that holds up under serious scrutiny — and that is worth acknowledging.
What This Means for How We Think About Long-Term Friendships
Old friendships carry something that newer ones often do not — shared history, accumulated trust, and a kind of ease that takes years to build. The Pythagorean framing of keeping an “old” friend, rather than simply having friends in general, may reflect an intuition about the specific value of longevity in relationships.
Public health research has increasingly pointed toward the quality and depth of social connections, not just the quantity. A single close, long-standing friendship may offer more protective benefit than a large but shallow social network. That is not confirmed in the specific source material here, but it is consistent with the broader direction of what the WHO findings suggest about strong social connections.
The practical takeaway is not complicated. Reach out to someone you have known for a long time. Maintain those relationships even when life gets busy. The evidence now suggests that doing so is not just emotionally rewarding — it may actually be one of the more concrete things a person can do for their long-term health.
Pythagoras could not have known what the WHO would conclude in 2025. But on the question of old friends, he was pointing in the right direction.
Frequently Asked Questions
Who was Pythagoras?
Pythagoras was a Greek philosopher and mathematician, widely known for the geometric theorem that bears his name and for his broader philosophical thinking about how human beings should live.
What is the quote attributed to Pythagoras about long life?
The quote suggests that if you want to live a long life, you should keep “a little old wine and an old friend.” It is widely attributed to Pythagoras, though exact ancient attribution is difficult to verify.
What did the WHO say about loneliness in 2025?
In June 2025, the World Health Organization reported that 1 in 6 people worldwide is affected by loneliness and that strong social connections are linked to better health and longer life. The WHO also linked loneliness to more than 871,000 deaths per year.
Does science back up the advice about keeping old friends?
Yes — the friendship half of the Pythagorean advice aligns with current public health evidence. The WHO’s findings confirm that strong social connections contribute to longer, healthier lives.
Does science also support the advice about aged wine?
According to The wine side does not carry the same straightforward endorsement from modern health research.
How many deaths per hour are linked to loneliness?
Based on the WHO’s June 2025 figures, loneliness is associated with more than 871,000 deaths a year, which works out to approximately 100 deaths every hour.
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