Dreaming: The more difficult the day, the more fear and anxiety appear in dreams

Stress experienced during the day is directly reflected in emotions during sleep: the more difficult the day, the more negative feelings — fear, sadness, and anger — appear in dreams. At the same time, the usual ways of coping with stress during the day do not necessarily protect against this effect. The study was published in the journal Dreaming.

Researchers at SRH University Heidelberg followed 65 participants who recorded their dreams for 14 days. A total of 276 dreams were collected. Pronounced negative emotions were present in 39% of them, while about 11% were described by the participants themselves as nightmares. Financial worries and relationship problems were most strongly associated with disturbing dreams.

The most unexpected finding was that daytime coping strategies did not “cancel out” the effect of stress on sleep. Participants who frequently relied on support from loved ones or tried to think positively did not necessarily experience fewer negative dreams than those who used less healthy coping strategies.

This suggests that the emotions we experience in dreams may reflect daytime stress quite directly, and that simply trying to “talk ourselves out of it” does not make the stress disappear. Sleep appears to process the tension accumulated during the day in its own way. From a practical perspective, this is important: when a person is troubled by nightmares, it may be more useful to address the underlying source of stress rather than focusing only on the dreams themselves. The authors note that the sample was small and consisted mostly of female students, so the findings need to be confirmed in more diverse groups.

Dreams and their emotional content have long remained on the margins of serious scientific research, but they are now being actively studied as a window into the workings of the brain and mind. Nightmares and anxiety dreams have been linked to stress, trauma, and sleep disorders, and their frequency may be a sign of psychological distress. Understanding how daytime experiences are transformed into nighttime experiences may help improve the treatment of sleep disorders.