Fatal Attraction: A Common Infection Linked to Sexual Deviance

According to a study by Janus and Janus,14 percent of male and 11 percent of females in the United States have had personal experience with sadomasochistic sexual practices. Although human behavior is complex, an intriguing link has been identified between sex and violence and a common parasite, Toxoplasma gondii, which is acquired from cats. It is well-established that parasitic infections…

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The Explosive Mix of Sex and Violence

The roving gangs of men who sexually assaulted women during the New Year’s Eve celebration in Cologne, Germany, have ignited outrage across Europe and around the world. (1)  The political implications have been much discussed, but how was this violence triggered in these individuals? These assaults illuminate a dark side of human nature: how sex and violence are…

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