Judith and Holofernes: alcohol's role in male sexual health in the light of the systems sexology

Introduction: Alcohol has been a central part of human culture for millennia and is closely linked to sexual behavior, a relationship portrayed in both negative and positive terms, from impaired performance to enhanced desire. Its influence on male sexual function is complex, shaped by biological, psychological, and social factors, as well as patterns and levels of consumption. Objectives: This review aims to summarize current evidence on the effects of acute and chronic alcohol consumption on male sexual function, highlighting mechanisms, patterns of use, and clinical implications. Methods: A PubMed search using MeSH terms and keywords related to alcohol and male sexual dysfunction (SD) yielded 599 articles. Relevant studies were selected for inclusion in this non-systematic narrative review, integrating findings from epidemiological, experimental, and clinical research. Results: Alcohol exerts complex pathophysiological and psychological effects—ranging from cardiovascular, hormonal, and neurological alterations to cognitive, emotional, and behavioral changes—that together shape its multifaceted impact on male sexual function. Social and cultural factors may further modulate this relationship. Light-to-moderate intake can have neutral or modestly protective effects on erectile function and may facilitate sexual activity. In contrast, heavy or binge consumption is consistently associated with erectile dysfunction, may contribute to ejaculatory disorders, and is linked to a reduced overall sexual quality of life. Chronic alcohol abuse, as seen in Alcohol Use Disorders (AUD), exacerbates sexual impairment through physiological toxicity, psychosocial stressors, and psychiatric comorbidities, while SD can, in turn, promote maladaptive drinking behaviors, creating a bidirectional relationship. Conclusion: Alcohol’s impact on male sexual function is dose- and context-dependent. While moderate intake appears benign, excessive consumption leads to significant SD that might, in turn, contribute to AUD. The systems sexology framework provides a holistic lens to understand how 4 interrelated domains (mind, body, experience, and society) interact in shaping alcohol-sex relationship, informing prevention and therapeutic strategies.