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"For newly-married men, the tip is fairly simple to keep your spouse in super mood: It is not about satisfaction that makes the women happy but the frequency of sex. According to a new study, unhappy n..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.in/2015/03/09/heres-exactly-how-much-sex-you-need-to-have-for-a-happy-marriag/>