As you can imagine, the study’s discoveries are bountiful, but the most significant finding of all is that “Alcoholism is a disorder of great destructive power.” In fact, alcoholism is the single strongest cause of divorce between the Grant Study men and their wives. Alcoholism was also found to be strongly coupled with neurosis and depression (which most often follows alcohol abuse, rather than preceding it). Together with cigarette smoking, alcoholism proves to be the #1 greatest cause of morbidity and death. And above a certain level, intelligence doesn’t prevent the damage.
One of the most intriguing discoveries of the Grant Study was how significant men’s relationships with their mothers are in determining their well-being in life. For instance, Business Insider writes: “Men who had ‘warm’ childhood relationships with their mothers took home $87,000 more per year than men whose mothers were uncaring. Men who had poor childhood relationships with their mothers were much more likely to develop dementia when old. Late in their professional lives, the men’s boyhood relationships with their mothers — but not their fathers — were associated with effectiveness at work. On the other hand, warm childhood relations with fathers correlated with lower rates of adult anxiety, greater enjoyment on vacations, and increased ‘life satisfaction’ at age 75 — whereas the warmth of childhood relationships with mothers had no significant bearing on life satisfaction at 75.”
In Vallant’s own words, the #1 most important finding from the Grant Study is this: “The seventy-five years and twenty million dollars expended on the Grant Study points to a straightforward five-word conclusion: Happiness is love. Full stop.”
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