Nothing quite like the Grant Study has ever been attempted; as Vaillant puts it, this research represents “one of the first vantage points the world has ever had on which to stand and look prospectively at a man’s life from eighteen to ninety.” The mountains of data collected over more than seven decades has become a rich trove for examining what factors present in a man’s younger years best predict whether he will be successful and happy into old age. The study’s researchers have continually sifted through the results and reports in an attempt to ferret out these promising elements. As Vaillant details in The Triumphs of Experience, some of the researchers’ original hypotheses did not pan out, and the job of untangling issues of causation and correlation goes on. Yet several insights have emerged very strongly and prominently from the data, offering brightly marked guideposts to a life well lived.

~ Brett McKay from, http://www.artofmanliness.com/2014/09/02/love-is-all-you-need-insights-from-the-longest-longitudinal-study-on-men-ever-conducted/

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