Men’s Testosterone Levels Drop When Interacting with Their Friends’ Wives

C. Price

Written by: C. Price

C. Price

C. Price is part of's content team. She writes advice articles, how-to guides, and studies — all relating to dating, relationships, love, sex, and more.

Edited by: Lillian Castro

Lillian Castro

Lillian Guevara-Castro brings more than 30 years of journalism experience to ensure DatingAdvice articles have been edited for overall clarity, accuracy, and reader engagement. She has worked at The Atlanta Journal and Constitution, The Gwinnett Daily News, and The Gainesville Sun covering lifestyle topics.

Discuss This! Discuss This!
Advertiser Disclosure

Drops in testosterone indicate men are naturally wired to avoid pursuing their friends’ romantic partners, according to a new study.

Coming out of the University of Missouri, the study found men’s testosterone levels actually drop when interacting with their friends’ wives.

Researchers said high testosterone levels correlate with increased sexual aggression. Conversely, low testosterone levels correlate with lowered attraction.


“Men’s testosterone levels actually drop

when interacting with their friends’ wives.”

If interacting with a certain woman spikes a man’s testosterone, he will find her more attractive than the average woman, but when a man’s testosterone levels drop when interacting with a woman, this leaves him feeling disinterested in her.

Researchers said the study provides a biochemical understanding for why men generally do not commit adultery with their friends’ wives, despite having more opportunity to cheat with these women than an unknown woman they meet at a bar or work.

“Men’s testosterone levels generally increase when they are interacting with a potential sexual partner or an enemy’s mate,” Mark Finn said. “However, our findings suggest that men’s minds have evolved to foster a situation where the stable pair bonds of friends are respected.”

Source: Photo source:

Advertiser Disclosure is a free online resource that offers valuable content and comparison services to users. To keep this resource 100% free, we receive compensation from many of the offers listed on the site. Along with key review factors, this compensation may impact how and where products appear across the site (including, for example, the order in which they appear). does not include the entire universe of available offers. Editorial opinions expressed on the site are strictly our own and are not provided, endorsed, or approved by advertisers.

Our Editorial Review Policy

Our site is committed to publishing independent, accurate content guided by strict editorial guidelines. Before articles and reviews are published on our site, they undergo a thorough review process performed by a team of independent editors and subject-matter experts to ensure the content’s accuracy, timeliness, and impartiality. Our editorial team is separate and independent of our site’s advertisers, and the opinions they express on our site are their own. To read more about our team members and their editorial backgrounds, please visit our site’s About page.