Let’s assume, for a moment, that your friends are not hitting on your wife. According to researchers at the University of Missouri, there’s a reason for that: testosterone levels, which usually rise when a man talks to potential mate, drop when men interact with the marital partner of a close friend. The conclusion is based on research that analyzed neuroendocrine responses to social events, such as men talking to the wives of friends, in a rural Dominican community. Intrigued? Read an abstract from the study here. Read a news release from the University of Missouri.