Once considered a universal feature of human psychology, the so -called “unhappy hump” in the midlife has disappeared, replaced by a worrying new trend: mental health is now the lowest among young people and continuously improves with age.
A recent study led by David Blancflower of Dartmouth College published in PLOS One, analyzed the survey data of the U.S, UK, and dozens of countries to detect the good patterns in generations. Traditionally, happiness was understood to follow a U-shaped curve, the fall in midlife from the youth and then growing at a older age. This “sick curve” or unhappy hump has now disappeared to a great extent.
U.S. And U.K. Evidence from.
Research by U.S. In the investigation of more than 10 million adults, which was surveyed by the Disease Control and Prevention Center (CDC) between 1993 and 2024, with 40,000 U.K. Domestic longitudinal studies with families were tracked through 2023 from 2009. Conclusions suggest that the midlife no longer represents the peak of unhappiness. Instead, mental health continuously improves with age, while patterns between people aged 40s and older have been relatively stable.
Blanchflower’s team concluded that the shift is mainly inspired by deteriorating mental health among young generations rather than improving old adults.
Global confirmation
Data of about 2 million people in 44 countries collected through global minds studies from 2020 to 2025 indicate that the disappearance of the midlife -dipped hardcore is U.S. Or U.K. Not limited to – it seems to be an event around the world.
Potential cause
Researchers suggest several possible factors behind this historical upsurge, including long -term economic challenges after the Great Recession, by reducing mental health services, the psychological effects of Kovid -19 epidemic and social media among the youth have increased. However, the accurate reasons remain unclear, and further research is required.
A growing concern
“This is the first study to show that being mental ill is now the highest among the young and declines with age,” the author note. “It represents a major change for the previous decades and indicates a serious mental health crisis among the youth that demands immediate attention.”
The study highlights the requirement of policy makers, teachers and healthcare providers to prefer mental health assistance for younger generations, which ensure access to resources and interventions that can address a growing crisis.
