Targeting Modifiable Risks: Molecular Mechanisms and Population Burden of Lifestyle Factors on Male Genitourinary Health.

Health represents a state of complete physical, mental, and social well-being, with lifestyle factors accounting for approximately 60% of health determinants. Suboptimal health describes an intermediate condition between wellness and disease. According to 2023 WHO data, infertility affects approximately 17.5% of global adults, with male factors implicated in 30-50% of cases, establishing infertility as a critical public health challenge. Substantial preclinical and clinical evidence links suboptimal lifestyles to male reproductive dysfunction, positioning these behaviors as modifiable infertility risk factors encompassing environmental contaminants and lifestyle patterns. This systematic review synthesizes evidence on five key lifestyle determinants-tobacco, alcohol, microplastics, sedentariness, and sleep disruption-affecting male genitourinary health. Adopting an evidence-based medicine framework, we integrate epidemiological and experimental research to establish foundational knowledge for developing novel preventive strategies targeting male suboptimal health.