The Surprising Demographics of Inner Peace
Did you know that, on average, our sense of inner peace tends to increase as we get older?
A cross-national analysis of demographic variation in self-rated mental health across 22 countries
Self-rated mental health varies significantly across the globe, with people in several African nations like Tanzania and Kenya reporting the highest scores and those in Japan, Türkiye, and the United Kingdom reporting the lowest.
Across most of the 22 countries studied, men, older adults, and those who frequently attend religious services tend to report better mental health.
The relationship between mental health and factors like marital status or education is not universal and changes depending on the country, highlighting the importance of cultural context.
“To improve well-being everywhere, we must look beyond economics to the social and cultural fabric that shapes people's lives.”
This research is a crucial reminder for global health leaders and policymakers that 'one-size-fits-all' solutions for mental health simply don't work. A strategy that helps in the United Kingdom might be ineffective or even irrelevant in Kenya, and vice-versa. The study highlights that factors we often overlook in wealthy nations, like strong community ties or participation in religious life, may be powerful protective forces against mental distress. For high-income countries with surprisingly low mental health scores, this research raises urgent questions. Are factors like social isolation, intense individualism, or a lack of community contributing to poorer outcomes? By revealing these stark global and demographic differences, this study provides a roadmap for future research. Understanding why some countries and communities are thriving mentally can help us develop smarter, more effective, and culturally sensitive support systems that improve well-being for everyone, everywhere. It forces us to look beyond just economics and consider the social and cultural fabric of people's lives.
“To improve well-being everywhere, we must look beyond economics to the social and cultural fabric that shapes people's lives.”
How do you think your mental health compares to someone on the other side of the world? A massive new study asked over 200,000 people in 22 different countries to do just that: rate their own mental health on a scale from 'poor' to 'excellent.' The results were full of surprises.
“National wealth does not guarantee mental well-being; people in some of the richest countries report the lowest scores globally.”
Researchers found that people in several African nations—specifically Tanzania, Kenya, and Nigeria—reported the highest levels of mental well-being. Meanwhile, people in some of the wealthiest, most developed countries, including Japan, Türkiye, and the United Kingdom, reported the lowest scores. This finding challenges the common assumption that national wealth automatically leads to better mental health. The study also looked at how mental health differs across groups of people.
Globally, men, older adults, married people, and those with more education tended to rate their mental health more highly. One of the most consistent findings across almost every country was the link between religion and mental health: people who attended religious services frequently reported significantly better mental well-being than those who never attended. However, not all patterns were universal. For example, while mental health generally improved with age in most wealthy countries, the opposite was true in places like India and Kenya. These variations show that there is no single story of mental health.
Our well-being is shaped by a complex mix of who we are, where we live, and the communities we belong to.
Residents of Tanzania, the country with the highest self-rated mental health, reported scores 1.45 times higher on average than residents of Japan, the country with the lowest scores.
On average across 22 countries, people who attend religious services more than once a week rated their mental health 0.81 points higher on a 10-point scale compared to those who never attend.
Across all countries, retired individuals reported average mental health scores that were 11.9% higher than those who were unemployed and looking for a job.
Individuals identifying as a gender other than male or female reported significantly lower self-rated mental health, scoring on average 1.9 points lower than males on a 10-point scale.
Okafor, C. N., Jean-Berluche, D., Paltzer, J., Kwon, E., Grigoropoulou, N., VanderWeele, T. J., & Johnson, B. R. (2025). A cross-national analysis of demographic variation in self-rated mental health across 22 countries. Communications Medicine, 5(1). https://doi.org/10.1038/s43856-025-01038-8
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