Nolen-Hoeksema’s research has found that “when people ruminate while they are in depressed mood, they remember more negative things that happened to them in the past, they interpret situations in their current lives more negatively, and they are more hopeless about the future.”
Rumination also becomes the fast track to feeling helpless. Specifically, it paralyzes your problem-solving skills. You become so preoccupied with the problem that you’re unable to push past the cycle of negative thoughts.
It can even turn people away. “When people ruminate for an extended time, their family members and friends become frustrated and may pull away their support,” Nolen-Hoeksema said.