turned out that “bad behavior” accounted for only about 50 percent of increased likelihood for disease. In a way that’s good news, because it means that if a person is exposed to ACEs and he is careful to avoid smoking, physical inactivity, and other health-damaging behaviors, he can protect himself from about 50 percent of the health risk. But it also means that even if he doesn’t engage in any health-damaging behaviors, he’s still more likely to develop heart or liver disease.

