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Violence is linked to aggressiveness, and aggressiveness has both environmental and genetic origins. Video games by themselves do not encourage someone to be violent, ergo, a genetic predisposition is required to be affected by excessive use of these. The subject could normalize behaviors, conducts or ways of proceeding that are perpetuated in video games with high levels of violence. Even so, there are some articles that ensure that those young people who dedicate more hours to violent video games present a greater predisposition to get involved in physical fights with their partners. Other studies support that playing competitive games does cause aggressive behavior over time. Whereas playing violent or non-competitive videogames does not, so it suggests that it is not about the idea of violence, but that it is this competitiveness in games that is responsible for this nexus of videogames and violence.