What makes life truly meaningful? According to one of the world’s longest-running studies, it all comes down to relationships.
The Harvard Study of Adult Development has followed participants for more than 80 years, and its findings are clear: strong, positive social connections are the single most powerful predictor of happiness and health as we age.
Led by Dr. Robert Waldinger, a psychiatrist at Harvard Medical School, and Dr. Marc Schulz, a psychology professor at Bryn Mawr College, the research has tracked the lives of hundreds of individuals—first Harvard undergraduates and boys from disadvantaged Boston neighbourhoods, later expanding to include their families across generations.
Their bestselling book The Good Life distils decades of data—from medical records to heartfelt interviews—into one resounding message: “Good relationships keep us happier and healthier. Period,” says Dr. Waldinger.
It turns out that it’s not wealth, success or even physical fitness that gives us a fulfilling life—it’s the quality of our relationships. Emotional support, social bonds and a sense of belonging impact not just our mood, but our brain function, physical health, and even how long we live.
Importantly, it’s never too late to make a difference. “At any age, we can make small choices that strengthen our relationships,” says Dr. Waldinger. Whether it’s a friendly chat, a shared meal, or checking in on a neighbour, every connection counts.
For older adults, these insights are both uplifting and practical. As isolation becomes a greater risk with age, the message is empowering: meaningful relationships can be built—and rebuilt—at any stage of life.
