When you sleep, your brain conjures up the most bizarre midnight movies ever by fusing unfamiliar and unexpected settings. Dreams, to put it another way.
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What do our dreams all represent and why do we have them, though? Michelle Drerup, PsyD, DBSM, a behavioral sleep medicine specialist, explains what is known about what happens when you dream. Experts don't have many specific answers, but she does have some behavioral sleep medicine expertise.
What triggers dreams?
What makes people dream? It's a problem of all time. Experts are mostly in the dark regarding the causes of dreams and their origins.
The prevailing opinion, however, is that dreams function as a "rehearsal" for numerous obstacles and situations that one encounters during the day and consolidate and analyze memories (such as abilities and habits).
Physiological changes that occur during dreams are also largely understood, though not entirely. The majority of dreaming happens during REM sleep, which we alternate between throughout the night. According to sleep studies, our brainwaves are practically as busy during REM episodes as they are when we are awake.
According to experts, dreams are produced by the forebrain while REM sleep is produced by the brainstem. Patients who have suffered brain damage dream but do not experience REM sleep. Patients enter REM sleep but do not dream if the forebrain is damaged.
Nevertheless, there is still a great deal we don't know about the psychological processes involved in dreams. For instance, according to one study, dreams are more likely to be the result of your imagination than of perception because they are more likely to be the result of your memories, abstract thoughts, and wishes (the vivid sensory experiences you collect in your forebrain).
Additionally, doctors have observed that psychiatric disorders can be accompanied by dreams. There is evidence to suggest that those with post-traumatic stress disorder (PTSD) are more likely to experience nightmares. Due to the recurrence of these symptoms with their traumatic events, PTSD sufferers see these as tension expressions.
Of course, people without PTSD often experience nightmares, necessitating further investigation into the causes of these frequently distressing experiences.
The reason behind your bizarre dreams
Neurotransmitters or other brain chemicals may be relevant to this. While others are muted, some become more evident during REM sleep.
More prominent are dopamine and acetylcholine, which maintain brain activation (which some researchers link to hallucinations). The surreal nature of dreams may be enhanced by dopamine.
Histamine, serotonin, and norepinephrine are among the neurotransmitters that REM sleep suppresses while keeping us awake. As a result, we have diminished environmental awareness.
The thalamus, which serves as the brain's sensory input gateway, may close while we dream, according to some studies.
How much time do dreams last?
We can't simply respond to this because we haven't established a reliable method for examining people's dreams. After you wake up, dreams quickly vanish from memory, making it challenging to link brain scan results to reports of dreams.
When you dream, space and time become different from one another. Time may seem to go by slowly or very fast.
Do we have dreams each night?
Almost everyone has dreams at night. However, unless you are awakened in the middle of or immediately after your dream, you simply don't remember it.
Although Dr. Drerup claims that immediately after waking up, you should write down the details of your dream, this can be irritating.
However, deciphering a dream's meaning is yet another enigma. Dr. Sigmund Freud introduced dream interpretation in the 1950s, but we have never been able to verify his assertions. Dr. Drerup observes that dream interpretation is wholly arbitrary.
So, put away the books that claim to explain the meaning of your REM dreams and turn to your own waking life instead.
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