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While many of us may have sensed it intuitively, there is now science behind the statement that "Love is all you need." A 75-year longitudinal study by Harvard researchers suggests that love is indeed key to a happy and fulfilling life.
While love seems to be a universally valued attribute, defining it in behavioral terms can be a challenge. As the Harvard study's lead researcher, George Vaillant, wrote of his team's findings, two essential ingredients are proven to correlate with a happy existence: "One is love. The other is finding a way of coping with life that does not push love away."