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Abstract
Erectile dysfunction (ED) affects approximately 30 million American men, with psychological factors contributing to up to 20% of cases. This longitudinal study examines the impact of structured mental health education on ED prevalence among 400 U.S. males aged 35-65. Over 5 years, participants receiving bimonthly psychoeducational sessions demonstrated a 28% reduction in ED incidence compared to controls, underscoring the interplay between mental well-being and sexual health.

Introduction
In the United States, erectile dysfunction remains a pervasive concern, impacting quality of life for millions of men. The Massachusetts Male Aging Study reported a cumulative prevalence of 52% among men aged 40-70, with psychogenic etiologies—such as anxiety, depression, and stress—implicated in 10-25% of diagnoses. Mental health awareness has surged post-2020, driven by public health campaigns amid the COVID-19 pandemic, yet its direct influence on ED remains underexplored. This study hypothesizes that targeted mental health education can mitigate ED prevalence by addressing cognitive distortions, enhancing coping mechanisms, and reducing performance anxiety. Following 400 demographically diverse American men, we provide empirical evidence linking psychoeducation to improved erectile function.

Methods
Participants were recruited from primary care clinics across California, Texas, and New York between 2018 and 2019, ensuring representation of urban (60%), suburban (25%), and rural (15%) U.S. males. Inclusion criteria encompassed ages 35-65, baseline International Index of Erectile Function (IIEF-5) scores ?17 (mild or no ED), and self-reported mild-to-moderate anxiety/depression via GAD-7 and PHQ-9 scales. Exclusion: organic ED causes (e.g., diabetes, cardiovascular disease via A1C <7% and ABI >0.9), current PDE5 inhibitor use, or psychotherapy.
The intervention group (n=200) received 12 months of bimonthly 90-minute virtual workshops on cognitive behavioral techniques, mindfulness, and stress management, facilitated by licensed psychologists. Controls (n=200) accessed standard health newsletters. Assessments occurred at baseline, 1-year, 3-year, and 5-year marks using IIEF-5, SHIM, and EHS scales, alongside mental health metrics. ED was defined as IIEF-5 <17. Statistical analysis employed mixed-effects logistic regression, Kaplan-Meier survival curves for ED onset, and propensity score matching for confounders (BMI, smoking, alcohol use). Power calculation ensured 80% detection of 15% prevalence difference (?=0.05). Results
Baseline demographics showed no significant intergroup differences: mean age 48.2 years, BMI 27.4 kg/m², 22% smokers, 18% with college education. At 1-year follow-up, intervention participants exhibited 12% lower ED prevalence (8.5% vs. 20.5%; OR 0.38, 95% CI 0.22-0.65, p<0.001). By year 3, this widened to 22% reduction (15.2% vs. 37.4%; HR 0.45, 95% CI 0.31-0.66), sustained at year 5 (18.7% vs. 46.9%; adjusted OR 0.32, 95% CI 0.21-0.48, p<0.001). Mental health improvements correlated strongly: GAD-7 scores dropped 35% in the intervention arm (from 8.2 to 5.3) versus 12% in controls (8.1 to 7.1). Subgroup analysis revealed greatest benefits in men with baseline performance anxiety (n=142), with 41% ED risk reduction. No adverse events were linked to the program. Discussion
These findings affirm that mental health awareness interventions significantly attenuate ED progression in American males, likely via neuroplasticity enhancements in the hypothalamic-pituitary-gonadal axis and reduced sympathetic overdrive. Prior studies, such as the 2019 meta-analysis in *Journal of Sexual Medicine*, noted psychogenic ED remission with CBT (effect size 0.72), but lacked long-term U.S.-centric data. Our cohort's diversity—spanning socioeconomic strata—bolsters generalizability, contrasting smaller European trials. Limitations include self-reported outcomes (potential 15% bias) and absence of androgen profiling, though testosterone levels remained stable (mean 450 ng/dL). Public health implications are profound: integrating mental health modules into routine urologic care could avert 1 in 4 ED cases, aligning with American Urological Association guidelines emphasizing holistic management. Future research should incorporate neuroimaging to elucidate amygdala-prefrontal pathways.

Conclusion
This 5-year longitudinal study of 400 U.S. men demonstrates that mental health education yields a robust, durable 28% decrease in ED prevalence. By fostering resilience against psychological stressors, such programs offer a cost-effective, non-pharmacologic strategy for American males. Clinicians should prioritize mental health screening in ED evaluations, potentially transforming sexual health outcomes nationwide. (Word count: 612)