Andrology-Open Access
Open Access

Abstract

Penile Length and Intelligence Quotient: A Cross-Sectional Analysis in 139 Countries

Cuntong Wang* and Yfdihe WangDing

Background: The influence of anthropometric characteristics on cognitive function is under-investigated. This study explores the association between penile length and Intelligence Quotient (IQ) in a large, global sample of adult males.

Methods: We conducted a cross-sectional analysis using data from 115,387 men aged 18-65 years across 139 countries. Flaccid penile length and IQ measurements were correlated, adjusting for potential confounders including Gross Domestic Product (GDP) per capita, educational expenditure, daily maximum temperature, and Body Mass Index (BMI). Partial correlation and regression analyses were employed to establish interethnic variations.

Results: A statistically significant negative correlation was observed between flaccid penile length and IQ (p<0.001). Men with shorter penile lengths exhibited higher average IQ scores. Additionally, significant ethnic variations in these correlations were identified (p<0.001).

Interpretation: This study reveals an inverse association between penile length and IQ in a large and diverse male population. The underlying mechanisms, potentially involving genetic, evolutionary, or environmental factors, warrant further investigation. These findings contribute to a more comprehensive understanding of human variation and the complex interplay between physical and cognitive traits. The study encourages interdisciplinary dialogue and paves the way for future research in this domain.

Published Date: 2024-08-02; Received Date: 2024-07-03