Sexual Dysfunctions in Men: An Evolutionary Perspective

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    8 Citations (Scopus)

    Abstract

    Successful sexual intercourse is a prerequisite for successful reproduction, a fact that translates into strong evolutionary pressures being exercised on mechanisms that regulate sexual functioning to work optimally. In effect, selection forces would remove from the gene pool any alleles that predispose for sexual dysfunctions, limiting their prevalence to very low levels. But this did not happen with epidemiological studies indicating that sexual dysfunctions are common, with approximately one in three men facing such a difficulty. This raises the question why evolutionary forces have allowed such variation in sexual functioning given its importance in reproduction. The present paper attempts to address this question by applying three evolutionary models on anthropological and historical evidence that depicts the ancestral human condition. It is argued that the high prevalence of sexual dysfunctions in men is predominantly explained by the mismatch between ancestral and modern environments, with selection forces not having sufficient time to optimize sexual functioning mechanisms to the demands of modern conditions. The proposed evolutionary framework is employed to derive predictions which are examined against the available evidence on sexual dysfunctions.

    Original languageEnglish
    Pages (from-to)220-231
    Number of pages12
    JournalEvolutionary Psychological Science
    Volume1
    Issue number4
    DOIs
    Publication statusPublished - Dec 2015

    Keywords

    • Ancestral neutrality
    • Balancing selection
    • Erectile dysfunction
    • Female choice
    • Hypoactive sexual desire
    • Parental choice
    • Polygenic mutation
    • Premature ejaculation

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