Genetic contributions to sexual relationship dynamics: A narrative review

The stability and satisfaction of sexual relationships are vital for individual well-being and societal cohesion. Although psychological and social influences on these outcomes are well-documented, the study of their genetic underpinnings remains an emerging area of research. This review aims to synthesize and critically analyze genetic research findings related to the stability and satisfaction of sexual relationships, highlighting key genetic mechanisms and their implications.

Material and methods. This review synthesizes findings from 42 peer-reviewed publications published between 2003 and 2023, focusing on the genetic contributions to relationship stability and satisfaction.

Results. Evidence indicates that neuroticism, with a heritability estimate of approximately 40 %, strongly predicts relationship instability. In contrast, higher levels of agreeableness and extraversion are associated with greater satisfaction. The review examines how genetics influence personality traits, attachment patterns, emotional regulation, hormonal factors, sexual compatibility, communication behaviors, and mental health predispositions. It also highlights the interaction between genetic and environmental influences, supported by case studies and empirical research that demonstrate the complexity of these relationships.

Conclusions. This review discusses ethical implications and outlines future research opportunities, providing a comprehensive perspective on how genetics can shape successful sexual partnerships. By integrating genetic research with relationship science, it offers evidence-based insights to guide future interdisciplinary investigations.

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