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若者の約半数が孤独を感じている——その精神的健康へのリスクは深刻だ

Nearly Half of Young Adults Feel Lonely—And the Mental Health Risks Are Alarming

8カ国約8,000人を対象とした国際調査で、若者の約2人に1人が孤独を感じ、孤独はうつや不安障害のリスクを大幅に高めることが明らかになった。
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A new international study suggests that loneliness is not a side issue in youth mental health; it may be one of its clearest warning signs. Published on February 5, 2026, the study analyzed 7,997 adults in Brazil, France, India, Indonesia, Nigeria, the Philippines, Türkiye, and the United States, using survey data collected between November 2023 and February 2024. Overall, 38.9% of respondents said they felt lonely, but among people aged 18 to 24, the figure rose to 46.8%—almost one in two. (link.springer.com)

The emotional cost was striking. Among respondents who reported loneliness, 17.3% met the screening threshold for depression, compared with 4.1% among those who did not report loneliness. For generalized anxiety, the gap was 11.2% versus 1.8%. Even after adjusting for age, gender, education, income, marital status, place of residence, and recent mental-health diagnoses, loneliness was still associated with 2.82 times higher odds of depression and 3.89 times higher odds of generalized anxiety. Country differences were also sharp: loneliness was highest in the Philippines, Brazil, and Nigeria, while India showed the lowest level; Brazil also had the highest prevalence of depression and anxiety in the survey. (link.springer.com)

These findings fit a larger global pattern. In June 2025, the World Health Organization reported that 1 in 6 people worldwide is affected by loneliness and said it is linked to an estimated 871,000 deaths each year. WHO had already launched its Commission on Social Connection in November 2023, calling loneliness a pressing health threat and warning that weak social ties are associated with risks including anxiety, depression, stroke, dementia, and suicide. (who.int)

For young people, the message is both simple and unsettling: being surrounded by messages, notifications, and online networks does not automatically create a sense of belonging. The study cannot prove that loneliness directly causes depression or anxiety, but it shows a powerful and consistent connection. In other words, human connection is not a luxury. It is part of the foundation of mental health. (link.springer.com)

by EigoBoxAI
作成:2026/03/29 09:01
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