Soul of Data
World Insights/The Loneliness Epidemic
Society·Global·May 2026

The Loneliness Epidemic

We have never been more digitally connected — or more profoundly alone. Are we the most disconnected generation in recorded history?

By Soul Of Data ·  May 28, 2026  ·  Sources: Gallup World Poll · Cigna Healthcare · U.S. Surgeon General · Survey Center on American Life · OECD

In 2023, the United States Surgeon General did something extraordinary: he declared loneliness a public health epidemic. Not a mental health trend. Not a sociological curiosity. An epidemic — the same word reserved for contagions and crises.

The data behind that declaration is staggering. And it gets more unsettling the deeper you look, because the loneliness crisis doesn't respect borders, demographics, or — most counterintuitively of all — the number of social media followers you have.

23%

of people worldwide say they felt loneliness "a lot" during the previous day — roughly 1.8 billion people experiencing profound disconnection on any given day.

Gallup World Poll, 2023 · 142 countries surveyed

That figure — nearly one in four humans — comes from Gallup's first-ever global measurement of loneliness, conducted across 142 countries. It captures people who felt deeply, acutely alone for a significant portion of their waking hours.

How Lonely Is the World? A Country Snapshot

% of adults who felt lonely "a lot" on the previous day · Gallup World Poll 2023

Source: Gallup World Poll (2023). 142 countries, ~1,000 respondents per country.

The geographic spread is telling. Africa dominates the highest-loneliness tier — Comoros tops the global ranking at 45%. But the pattern doesn't map neatly onto poverty. Some of the world's wealthiest democracies post loneliness rates well above Scandinavian and Eastern European nations.

Vietnam records the lowest loneliness rate on earth at just 6%. Estonia, Kazakhstan, and Denmark cluster near the bottom. The common thread isn't wealth — it's social infrastructure: multigenerational households, strong community ties, and cultures where solitude is chosen rather than imposed.

The Generational Twist Nobody Expected

If loneliness were simply a product of isolation, we'd expect the elderly to suffer most. The data tells a completely different story.

79%

of Gen Z adults report feeling lonely — versus just 50% of Baby Boomers. The most digitally connected generation in history is also its loneliest.

The Cigna Group · Loneliness in America 2025 · n=7,500 U.S. adults

The Generational Loneliness Gap

% reporting loneliness by generation, United States · Cigna 2025

Source: The Cigna Group, Loneliness in America 2025. Survey of 7,500 U.S. adults, May–June 2024.

The Friendship Recession

There is a quieter crisis embedded within the loneliness epidemic: we are losing our friends. Not gradually — rapidly, and across a very specific window of time.

Key Finding

The percentage of Americans with zero close friends has increased fivefold since 1990 — from 3% to 17% by 2024. Time spent with friends dropped from 6.5 hours per week (pre-2014) to just 4 hours per week by 2019.

The Vanishing Friend Group

Distribution of close friendships in America · 1990 vs 2021 vs 2024

1990
2021
2024

Source: Survey Center on American Life (2021, 2024); American Enterprise Institute.

The collapse of deep friendships is sharpest among men — in 1990, 55% of men had six or more close friends; by 2021 that had crashed to 27%. Young men in the U.S. (15–34) now record some of the highest loneliness rates in the Western world at 25%.

The Social Media Paradox

Here is the central absurdity of the modern loneliness crisis: as social media exploded, real-world connection quietly collapsed.

More Connected Online, Less Connected in Life

Global social media users (billions) vs. social connection index (0–100) · 2005–2024

Social media users (billions)
Connection index (0–100)

Sources: Statista / DataReportal (social media users); Cigna, Gallup, OECD time-use data (connection index, composite, normalised 0–100).

"Social media gives us the appearance of connection while often delivering the experience of comparison."
— U.S. Surgeon General's Advisory, 2023

Global social media users grew from roughly 100 million in 2005 to 5.5 billion by 2024 — a 55× increase in two decades. Over the same period, measures of meaningful social interaction moved in the opposite direction.

Why This Is Literally Killing Us

Loneliness is not merely emotional discomfort. The U.S. Surgeon General's 2023 advisory established something that should shock us all:

Loneliness carries the same mortality risk as smoking 15 cigarettes per day. Being socially disconnected increases the risk of premature death by 26–29% — a greater health hazard than obesity or physical inactivity.

+26%

increased risk of premature death from loneliness

+29%

increased risk of heart disease

+32%

increased risk of stroke

+50%

increased risk of dementia in older adults

Loneliness increases the likelihood of anxiety and depression, accelerates cognitive decline, and impairs immune function. Fifty-two percent of workers globally say they feel lonely — yet most workplaces have no loneliness policy whatsoever.

So — Are We the Most Disconnected Generation Ever?

The honest answer is: probably yes, in the specific way that matters most. What's unprecedented about the modern loneliness epidemic is that it exists within a world of frictionless connectivity. We have built the greatest communication infrastructure in human history, and we are using it to watch each other's highlight reels while slowly losing the ability to sit across from another person and feel truly seen.

What The Data Tells Us

Global loneliness affects 1 in 4 adults. Young people are more lonely than the elderly. The friendship crisis has accelerated since 2014. Social media growth has not offset — and may have worsened — real-world disconnection. The health consequences are severe and measurable. This is not a soft issue. This is a data story.