Dream of playing in the clear sea

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Dreams have nothing to do with bad luck < br > < br > many people have such distress: after falling asleep, they often have nightmares and even wake up. Due to poor sleep, I was dizzy and dizzy the next day, which affected my work and study. Some also worry that nightmares will bring bad luck to themselves, causing psychological fear and anxiety< Br > < br > in fact, dreaming is a normal psychological phenomenon produced during sleep. In general, human brain nerve cells are in a state of inhibition during sleep. Sometimes the inhibition process is complete, sometimes not complete. If it is not completely inhibited and a few nerve cells in the cerebral cortex are excited, people will have dreams. Because the activities of a few cells lose the control and regulation of the whole cerebral cortex during the awakening state, some fragments in memory become active unrestricted, which may show strange dreams different from normal psychological activities. At this time, if the nerve cells related to language and movement are also in an excited state, they will not only have dreams, but also talk in dreams or sleepwalk.
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