For over 75 years, Harvard’s Grant and Glueck study has tracked the physical and emotional well-being of two populations: 456 poor men growing up in Boston from 1939 to 2014 (the Grant Study), and 268 male graduates from Harvard’s classes of 1939-1944 (the Glueck study).
Due to the length of the research period, this has required multiple generations of researchers.
The conclusion? According to Robert Waldinger, director of the Harvard Study of Adult Development, one thing surpasses all the rest in terms of importance: “The clearest message that we get from this 75-year study is this: Good relationships keep us happier and healthier. Period.”
Read the article at Fast Company.