Youth Loneliness: The Underestimated Crisis

The Numbers: A Dramatic Rise

The Bertelsmann Stiftung documents the trajectory: before the pandemic, 14–17% of young adults felt lonely. In 2020 the figure jumped to 41%. By 2022/23 it fell to 36% — but the most recent survey shows a renewed increase to 46%.

Those hit hardest: young men, people with low incomes, and those without a stable circle of friends. The pandemic amplified a trend that had already begun.

Social vs. Emotional Loneliness

Research distinguishes two forms: social loneliness(39%) arises from a missing social network — no group, no sense of belonging. Emotional loneliness (29%) comes from lacking a close confidant.

Both forms are relevant to health but operate through different mechanisms. Social loneliness concerns the need for belonging; emotional loneliness concerns the need for intimate connection.

Health Consequences

Loneliness among young people is not just a feeling — it has measurable physical consequences. The neurobiology of loneliness shows: a lack of social interaction leads to a deficit in β-endorphin stimulation, elevated cortisol, and weakened immune function.

In the long run, the risk of depression, anxiety disorders, and chronic illness rises. For adolescents there is an additional factor: loneliness during developmental years can permanently impair social skills.

What Actually Helps

The research is clear: structured groups are the most effective remedy for loneliness. Clubs, volunteering, and guided group activities provide three key elements: regularity, shared identity, and low-barrier contact opportunities.

Santini et al. (2021) showed: three close friends plus volunteering have the same mental-health effect as five close friends. The way out of loneliness runs through structure, not chance.

Frequently Asked Questions

How many young people in Germany are lonely?

According to the Bertelsmann Stiftung (2024), 46% of 16- to 30-year-olds feel lonely. Social loneliness (39%) is more common than emotional loneliness (29%). Before the pandemic the figure was only 14–17%.

What is the difference between social and emotional loneliness?

Social loneliness arises from a missing social network — too few contacts, no sense of belonging. Emotional loneliness comes from lacking a close confidant. Both can occur independently of each other.

Has loneliness returned to normal after the pandemic?

No. From 14–17% (before 2020), the share rose to 41% (2020), then fell to 36% (2022/23) — but recovery is incomplete. The current 46% even suggests further deterioration.

What can young people do about loneliness?

Research shows: structured activities help most. Clubs, volunteering, or guided groups offer regularity, shared identity, and low-barrier contact opportunities. Three close friends plus volunteering have the same mental-health effect as five close friends.