What keeps humans healthy and guarantees a long and fulfilling life? For decades, the answer to this question was scattered in opinions. People around the world debated whether it is a disciplined routine, a healthy diet or financial security. Surprisingly, Harvard researchers, through one of the longest running studies, have found the answer and it isn’t something most of us would expect, in fact, it is something many of us take for granted.
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One of the longest studies predicts the secret to longevity
The Harvard Study of Adult Development began in 1938 and is described as the world’s longest scientific study on happiness and health. The research originally spanned two groups and has now spanned more than 80 years. Researchers followed these participants as they aged, studying everything from medical records to personal interviews with their children. The findings amazed the researchers because it wasn’t career, class or wealth that determined who aged well and lived longer. The study found the greatest predictor of longevity was relationships.
Loneliness kills. It’s as powerful as smoking or alcoholism.
Dr. Robert Waldinger, Director, Harvard Study of Adult Development
Quality, not quantity of relationships matters
Insights from the study explain that it was not about the number of relationships one had, but the quality of them. The findings were evident that participants who had strong and supportive relationships, with family and friends, were healthier and more resilient, even in old age. On the other hand, a busy social calendar did not guarantee happiness or health. High conflict relationships were found to be damaging something more than just solitude. Against this, people who felt they could rely on others, experienced better emotional stability and in the longer run, had slower cognitive decline.
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Secret to longevity and the power of relationships
Emotional support from closed ones doesn’t just strengthen resilience. The science behind it is meaningful stimulation of the brain. Healthy relationships reduce stress by lowering cortisol levels, help regulate blood pressure and boost immunity. Relationships nurture both mind and body. The feeling of being understood fosters a sense of belonging and gives purpose to life.
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Lessons from Harvard’s 8 decades study
In essence, the most important thing one can do to protect health and enhance longevity is nurturing relationships. The study carries an important lesson for modern society. In this digital era, where loneliness has become a health crisis, the ultimate secret to living a good life isn’t so far from our reach. Look around and you’ll understand, it’s never too late to invest in relationships.