Why does violence cause some people to become sexually aroused?

It's people: Issues of control, dominance, submission and conquest are wired into many people's sexual responses -- for what reason, you will have to tell me. All adults know that all satisfying relationships are based around mutual respect and equality. Grown-ups role-playing by mutual consent is a turn-on for some folks. The annals of crime are filled with people who don't separate fantasy from reality..

Mate + Fight Neurons: In 2011, a team of neurocientists published findings of their study of circuits in the brains of mice - ones involved in sex & violence, presumably in mammals, generally. They discovered when measuring cells in a particular region of the brain associated with violent behavior (an area of the hypothalamus), a group of those cells became active both when the mice fought and when they mated.