Men with higher testosterone levels report being more protective of their romantic relationships

New research suggests that men with higher levels of testosterone tend to devote more energy to keeping their romantic partners faithful and in a relationship with them. The study, published in the journal Physiology & Behavior, examined what is known as mate retention behavior. “A great deal of research has previously focused on the role that testosterone (an androgen) plays in men’s mate-seeking and competition for mates,” explained study author Steven Arnocky, an associate professor and founding director of the Human Evolution Laboratory at Nipissing University, Canada.

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