Researchers at the University of Turku in Finland analyzed the content of violent dreams experienced by 1,200 people and found that the dreams often involved themes of aggression, danger, and survival. They also found that people who experienced violent dreams were more likely to be exposed to stress and trauma in their waking lives.
Based on these findings, the researchers suggest that violent dreams may have evolved as a way to help people process stressful events and to prepare for potential dangers.
"Violent dreams may be a way for the brain to process negative emotional arousal and develop strategies to cope with stressful situations," said study author Antti Revonsuo. "By imagining and rehearsing dangerous scenarios in dreams, people may become better able to face them in real life."
The researchers also found that people who were able to control their violent dreams were less likely to experience stress and trauma in their waking lives. This suggests that having control over one's dreams may help to mitigate the negative effects of stressful events.
"Our findings suggest that lucid dreaming, or the ability to control one's dreams, may be a useful tool for reducing the impact of stress and trauma on mental health," said Revonsuo.
The study was published in the journal Frontiers in Psychology.
