What kind of effect can watching "bad videos" have on the brain? What kind of effect can watching "bad videos" have on the brain? What kind of effect can watching "bad videos" have on the brain? What kind of effect can watching "bad videos" have on the brain? What kind of effect can watching "bad videos" have on the brain? What kind of effect can watching "bad videos" have on the brain? What kind of effect can watching "bad videos" have on the brain?