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Might have something to do with the women those men are married to.

• WalterSear 13y ago
  Indeed. And how they relate to them.
  • javert 13y ago
    Marriage.
    • WalterSear 13y ago
      The kind of marriage where everyone has a job description, or the kind of marriage where people are open and honest and work together to make each other happy?
• sp332 13y ago
  Not all of the men in the study are married, or stayed married until they were 68-80 years old.