回答: 国内最新研究发现 由 静候佳人 于 2024-06-19 5:23

https://www.researchgate.net/publication/377830081_The_association_between_adult_penile_length_and_IQ_evidences_from_139_countries#:~:text=Results%20A%20statistically%20significant%20negative,observed%20(P%20%3C%200.001). cool18.com
A 2024 study published in Research Square found a statistically significant negative correlation between flaccid penile length and IQ in adults, with individuals having shorter penile lengths tending to have higher IQs. The study also observed notable ethnic differences, with individuals of African descent having the largest penises, Caucasians having intermediate sizes, and Mongoloids having the smallest. In terms of IQ, Mongoloids and Caucasians tended to have the highest IQs, followed by Native Americans, while Southeast Asians and people of African descent tended to have lower IQs.