The 13th annual World Happiness Report, released to mark the UN's International Day of Happiness, ranks the world's happiest countries by asking people to evaluate their lives.Also, a near-80-year Harvard study, the Study of Adult Development, has investigated the factors contributing to a healthy and happy life by tracking hundreds of men and later their families since 1938. The long-term research revealed that strong relationships are far more influential on long-term health and happiness than factors like wealth, IQ, or even genetics. Researchers discovered that satisfaction in relationships at midlife is a significant predictor of physical and mental well-being in older age. Key findings emphasise the importance of social connections, marital stability, and avoiding unhealthy habits like smoking and excessive alcohol consumption for promoting healthy ageing. The ongoing study continues to explore how early life experiences impact health across generations, highlighting the enduring power of human connection on overall well-being.