Sometimes dreams make a lot of sense -- like when we’ve been working hard and we end up dreaming, alas, that we’re still at work. Other times the meaning of dreams is less clear. That doesn’t mean the dream isn’t important to our well-being, however.
Retired teacher Barbara Kern can vividly recall the details of a dream she had nearly four decades ago, for instance. “I’m lying on my back, holding the bottom rungs of a fireman’s ladder that has been extended to its full height,” she explains. “A boy is at the top of the ladder, swaying it back and forth, while I try to control it, but I can’t and I’m afraid he’s going to fall.”
Alison Zollars Arthur knows better. As the owner of a skin and body wellness center, the 44-year-old Houston resident regularly counsels her clients about the importance of a healthy diet. But too often, she pigs out on fast food, salty snacks, and wine.
"If I have one glass of wine, I will have more," she says. "The voice saying, 'You really shouldn't,' shuts down, and I can do anything I want to."
That "voice" is the dorsolateral prefrontal cortex, an area of the brain that handles planning,...
For Kern, 79, who now lives in Lakewood, N.J., the dream was a symbolic expression of real-life concerns about her ability to reach a boy with severe learning problems whom she remembers as “one of the most challenging students I ever taught.” She characterizes the dream as a nightmare, recalling that it kept her up half the night.
Dreams, memories, and emotions
The dream -- likely a means of coping with a major life stress --helped Kern, explains researcher Rosalind Cartwright, PhD, professor emeritus of psychology at Rush University in Chicago. “It’s almost like having an internal therapist, because you associate [through dreams] to previous similar feelings, and you work through the emotion related to it so that it is reduced by morning.”
Although some researchers believe dreams are just a byproduct of sleep, others think dreams are important for memory consolidation or conflict resolution. Cartwright has found clues to suggest that dreams may help with mood regulation.
Dreams occur during both REM (rapid-eye-movement) and non-REM sleep, but sleep studies show that brain activity is heightened during REM periods. When sleep-study participants are wakened during the first non-REM period, those who recall their dreams tend to report thinking about a piece of emotional unfinished business. The dreamer may then restate or reshape the problem in a different form during the next REM cycle, and so on, through the night.