The biggest fiction behind James Bond is that the fantasy master spy and world-class heartbreaker lived past 40-something. It’s not just the death traps and vodka martinis, or even the three packs of cigarettes a day, that would have shortened his life. His naked ring finger would have too. Because real men need wives. Consider the data: Married men—regardless of age, sex, race, income or education—consistently have been found to be healthier than men who are single, divorced or widowed. This so-called “marriage benefit” begins to kick in right after the wedding, then builds. Husbands ages 18 to 44 are...