What is it about?
We followed 3,187 adults in Minami-Izu, Japan (2016–2023) and asked a single question about current happiness. Over the follow-up, 277 participants died. People who reported being unhappy had a higher mortality risk than those who reported being happy, even after accounting for age, sex, socioeconomic factors, BMI, and physical functioning (adjusted OR 1.85). This observational finding suggests emotional well-being may be a relevant indicator for long-term health.
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Why is it important?
Happiness may be more than a feeling—it could be connected to long-term health. Our findings suggest that emotional well-being deserves attention in public health and community support, especially in aging societies.
Perspectives
Our study suggests that people who feel unhappy may be at higher risk of dying earlier. This does not mean happiness “protects” everyone, or that people can simply choose to be happy. Rather, feelings of unhappiness may signal underlying challenges such as poor health, stress, or social isolation. Supporting emotional well-being—through social connection, accessible services, and healthier daily living—may help promote healthier aging.
Akitomo Yasunaga
Read the Original
This page is a summary of: Association of state happiness with mortality: Evidence from a prospective cohort study in Japan., Health Psychology, January 2026, American Psychological Association (APA),
DOI: 10.1037/hea0001571.
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