In a recent survey in the United States, 83% of men or women said that they were monogamous (married or cohabiting) and had only one or no sexual partners in the past year. divorced and remarried men father more children than men married for life) but does not benefit women in this way. Serial monogamy has been shown to increase the evolutionary fitness of men (i.e. changing monogamous partners when their children become more independent. Humans also have a tendency toward serial monogamy, i.e. Thus, monogamy appears to be the main present-day human sexual strategy, with polygyny being a secondary choice.
This is probably because few men have the social status or resources to care for multiple wives and their children, and thus most men, even in polygynous cultures, practice monogamy.
Lopez PhD, in Human Reproductive Biology (Fourth Edition), 2014Ī survey of 853 present-day human cultures, from developed to hunter-gatherer, has shown that 84% of human cultures permit polygyny, although only 10% of men in these cultures actually have more than one wife. Studies demonstrate that teens are more likely to use condoms with casual partners than with main partners, but even use with casual partners is not consistent. Many adolescents do not have the knowledge or skills related to correct condom use, and there is significant reluctance to use condoms among those who see them as interfering with sexual pleasure and who lack the self-efficacy to purchase and use them. However, condom use is not consistent among adolescents. After abstinence, correct and consistent condom use is the most effective STI and HIV prevention method. While that practice is not as risky as engaging in concurrent sexual relationships, there may be a false sense of safety among those who develop sexual relationships with multiple partners across a period of time. Serial monogamy, defined as going from one monogamous relationship to another with frequency, is common among adolescents.
Trading sex for money or drugs, having multiple partners, and using condoms infrequently place adolescents at significant risk for acquiring STIs and HIV. Tolou-Shams, in Encyclopedia of Adolescence, 2011 High-Risk Sexual Behaviors
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