Why do I forget the contents of my dream when I wake up from a dream?

My personal understanding:

In fact, I didn't forget, but I just deleted the "search mark" for this dream, because the brain also needs to reduce the load, and it is not necessary to retrieve irrelevant information when you dream every day, just remember the more special dreams. So in simple terms, it should be the "extraction problem".

Many times people will have a feeling of "déjà vu" when they go to a new scene, and there is a certain chance that because this scene is very similar to a past dream, this "forgotten" memory will be called up.

Here are the different theories that dry goods, explained from a physiological point of view::

Possible cause 1:

Dreaming occurs during REM sleep and NREM sleep, with the vast majority of them occurring during REM sleep.

The neural structures between the thalamus and cortex produce rhythmic, synchronized, slow waveforms. When you wake up, you start generating gamma waves of 30-80 Hz, a process that is thought to be closely related to the process of combining independent perception with complex thinking. However, during sleep the main cortical area is closed, thus creating a "closed nervous system".

During REM sleep, cholinergic neurons in the pons are activated and transmit signals to the lateral geniculate body in the thalamus and then to the visual cortex. It is important to note that the process of transmitting signals from the pons to the frontal lobe is specifically activated during dreams, so the integrity of the brainstem is important for REM dreams. Dreaming is a dopaminergic process that occurs in limbic areas and connects with the cortex through the Papez circuit.

Among them, the Papez loop is the part that controls the expression of emotions, which is why there are also joys, sorrows and sorrows in dreams.

Here comes the point: the brain's executive system is responsible for constructing dreams in dreams, and the executive system operates in all directions when awake, while in sleep, the executive system only partially functions, and in dreams, dendritic pleats occasionally "**" cause the accidental activation of memory traces, thus forming some distorted thoughts. During non-eye movement sleep, protein synthetics are activated, forming protein bonds in dendritic folds, which help consolidate memory; However, the density of protein synthetics is low during sleep during the eye movement period, which causes the dendritic folds to decompose more quickly, so that the memories in the dream are fleeting.

That's why we forget all the memories in our dreams shortly after we wake up.

Conversely, if a person wakes up while REM sleeps, then it is possible that the executive system of the brain is immediately activated and the protein bonds start to work, producing strong dendritic folds and consolidating the memory, so we will retain these dream memories for a longer period of time. <>

Loss of norepinephrine in the cortical layer is a possible cause. The cerebral cortex is the area of the brain responsible for memory, thought, language, and consciousness, and a loss of norepinephrine in the cortex is responsible for memory loss. A 2002 study showed that although the role of norepinephrine in learning and recall is debated, its presence can enhance memory.

However, the lack of norepinephrine does not fully explain why people forget dreams. Studies have shown that dreams are dependent on the continuum of other brain functions in the cortex, with focused thinking at one end and dreams and mind-wandering at the other, with some overlap at both ends. Dreams and fantasies end with some creative substance involved, and these discontinuous thoughts are not easily remembered, just as it is difficult for you to remember what you were thinking when you brushed your teeth in the morning.

Dreams occur in the shallow sleep area, and people's sleep is from light sleep to deep sleep, so most people may only remember having a dream when they wake up in the morning, but usually do not remember the content of the dream, which is also a normal phenomenon.

Sleep is the main way to eliminate brain fatigue and physical recovery, and dreaming is a normal and essential physiological and psychological phenomenon of the human body during sleep. After a person falls asleep, a small part of the brain cells are still active, which is the basis of dreams. When people dream, they can recombine existing knowledge, reasonably integrate new knowledge with old knowledge, and turn it into memory.

Whether you have a dream or don't remember the dream after a dream, don't worry too much, it can be well prevented by relaxing your mind and paying more attention to your life status.

There are two explanations for this situation.

1. When the natural mood is very light, dreaming is generally meaningless, and this kind of meaningless dream, and this kind of dream is not recorded by the brain, so it will not be remembered when you wake up in the morning. And the body is very tired, and I can't remember it when I sleep and dream. Because the brain, like the body, is also tired, and the body rests and the brain rests, even though it can't be remembered in dreams.

In deep sleep, dreams are shallow, and this shallowness disappears when you wake up, so you can't remember dreaming.

2. When the brain is not very tired, the cerebellar information exchange of the brain produces dreams, and some people often say that the dream talk is the result of the information exchange between the brain and the cerebellum, once the person wakes up and the information is interrupted, it will not leave traces of the dream, so it is normal to not be able to remember the dream, not a disease.

Why is it that some dreams can be remembered clearly when they wake up, and some dreams cannot be remembered at all after waking up? According to the explanation of the master psychoanalyst Sigmund Freud, deep in our hearts, there is a "world of unconscious desires" that we are not usually aware of.

When awake this desire (according to Freud, mainly sexual desire) is controlled by consciousness, but once asleep, the repression of consciousness begins to relax, so it gradually manifests itself in dreams. At that time, the deep desire will awaken and become a dream, that is, an image or a story. But at this time, the control of consciousness is not completely lost, so the wish cannot be blindly successful.

The result of this kind of consciousness examination is a dream that we can remember, and it is also a dream whose content is extremely unlikely. Furthermore, if the content is too absurd and surprising to our consciousness, then the consciousness will send the dream back into a deep forbidden chamber, turning it into an "unrememberable" dream. When a person sleeps, the brain is in a state of deep sleep.

Unable to perform normal memory functions. So I can't remember the dreams I have had clearly.

Generally speaking, the cerebral cortex is still active during sleep, and there will be many fantasies, that is, dreams. In other words, a person will have a lot of dreams in one night. Some dreams are closer to waking up, some are farther away, some are impressive, and some forget about it.

Maybe you don't have anything to worry about and worry about, so you don't take those fantasies to heart.

On the contrary, I can often think of dreams within dreams. Because my dreams happen too often.

Summary. Hello dear, happy to answer for you! The reason why I woke up from a dream and forgot everything that happened in the dream was:

It is related to memory forgetting, which is a normal physiological phenomenon, and according to the study of brain electrophysiology, dreams occur during REM sleep. Sleep can be divided into two phases: non-REM sleep and REM sleep, the dreams produced in the REM sleep phase are similar to what happens in real life, all enter short-term memory, and it is easy to forget without going through the reinforcement process, so after the non-REM sleep phase, most of the dreams are forgotten, and people can't remember the <> after waking up

Hello dear, happy to answer for you! The reason for forgetting everything that happened in the dream after waking up is that it is related to memory forgetting, which is a normal physiological phenomenon, and according to the study of brain electrophysiology, the dream occurs during REM sleep.

Sleep can be divided into two phases: non-REM sleep and REM sleep, the dreams produced in the REM sleep phase are similar to what happens in real life, all enter short-term memory, and it is easy to forget without going through the reinforcement process, so after the non-REM sleep phase, most of the dreams are forgotten, and people can't remember the <> after waking up

Kiss, expand for you: What does the dream represent: People's sleep is divided into two parts, they will dream during the fast-wave sleep period, and they will wake up during the fast-wave sleep period and generally have a clearer understanding of the dream.

But it's also a sign of reduced sleep quality; Dreaming is a good phenomenon, it is a manifestation of the brain adjusting itself, waking up in a dream indicates that the brain has not completed the <> adjustment

When people are awake, it is easy to remember those things that are repeated and forget things that appear only once. Most of the scenes in dreams only appear once, which also makes dreams easy to forget. More important is the third reason.

If feelings, imaginations, thoughts, etc., are to be easily remembered, it is important not to isolate them from each other, but to connect them to each other in an appropriate way as a whole.

Dreams are not easy to understand and have no order in most cases. The parts of dreams are easy to forget, difficult to remember, because most of them quickly disperse into pieces. But Radstock said that his views do not agree with ours, and that he thinks the most memorable dreams happen to be the most exotic dreams.