More monogamy among couples of all types


According to the study:

  • The percentage of heterosexual men who reported having sex with someone other than their wife dropped to 10 percent in 2000 from 28 percent in 1975.

  • Among married women, it declined to 14 percent from 23 percent.

  • Among gay men, the percentage that cheated on their partner dropped to 59 percent from 83 percent.

  • For lesbians, it declined to 8 percent from 28 percent.

Experts attribute the drop to greater awareness of HIV, AIDS, and other STDs.

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