The precuneus is involved in mental imagery concerning the self, episodic memory, and modeling other people’s views—all of which are main components of the DMN. Benedek and Jauk, psychologists specializing in research on creativity, note that “higher creativity is consistently associated with higher gray matter density in DMN regions, especially... See more
“Worry can become like a bad habit of the mind. The rule of neuroplasticity—that our brain keeps changing based on our repeated activity—says that whatever we do a lot we will get better at. So if we worry a lot, we will get really good at worrying.” In other words, once you start worrying about something, it can be hard to stop.