In the third millennium BC, Mesopotamian kings recorded and interpreted their dreams on wax tablets. A thousand years later, the ancient Egyptians wrote a dream book listing more than a hundred common dreams and their meanings. our research to understand why we dream. So after a lot of scientific research, technological advancements, and perseverance, we still don't have certain answers, but we do have some interesting theories.

 We dream of satisfying our desires. In the early 1900s, Sigmund Freud proposed that while all of our dreams, including our nightmares, are a collection of images from our daily conscious life, they also have symbolic meanings, which refer to the fulfillment of our subconscious desires. . Freud theorized that everything we remember when we wake up from a dream is a symbolic representation of our unconscious primal thoughts, impulses, and desires. Freud believed that by analyzing these memorized items, the unconscious content would be revealed to our conscious mind and the psychological issues resulting from its repression could be addressed and resolved. We dream of remembering. 

To increase performance in certain mental tasks, sleeping is good but dreaming while sleeping is better. In 2010, researchers found that subjects were much more successful in traversing a complex 3D maze if they had slept and dreamed about the maze before their second attempt. In fact, they were up to ten times better than those who only thought about the maze while waking up between attempts and those who slept but didn't dream of the maze. Researchers hypothesize that certain memory processes can only occur when we sleep and that our dreams are a signal that these processes are taking place.

 We dream of forgetting. There are approximately 10 trillion neural connections in the architecture of your brain. They are created by everything you think and everything you do. A 1983 neurobiological theory of dreaming called reverse learning argues that during sleep, and primarily during REM sleep cycles, your neocortex examines these neural connections and discharges unnecessary ones. Without this process of unlearning, which culminates in your dreams, your brain could become flooded with unnecessary connections and clutter and thoughts could interrupt the necessary thinking you need to do while you're awake. We dream to keep our brains running. The Continuous Activation Theory proposes that your dreams stem from your brain's need to constantly consolidate and create long-term memories in order to function properly. 

So when the external input drops below a certain level, such as when you sleep, your brain automatically triggers the generation of data from its memories, which appear to you in the form of the thoughts and feelings you have in your dreams. In other words, your dreams could be a random screensaver that your brain activates so that it doesn't turn off completely. We dream of trying. Dreams involving dangerous and threatening situations are very common, and the primitive instinct evidence theory holds that the content of a dream is important to its purpose. Whether it's a night filled with anxiety about being chased through the woods by a bear or fighting a ninja in a dark alley, these dreams allow you to exercise your fighting instincts. or leak and keep it sharp and reliable in case you have any needs in real life. 

But that doesn't always have to be unpleasant. For example, dreams about your attractive neighbor can also give your reproductive instincts a bit of a workout. Actual stress neurotransmitters in the brain are much less active during  REM  sleep, even during dreams of traumatic experiences, leading some researchers to theorize that one of the purposes of dreaming is to eliminate painful experiences to provide psychological healing. less mental stress can give you a clearer perspective and a greater ability to deal with them in a psychologically healthy way. People with certain mood disorders and PTSD often have difficulty sleeping, leading some scientists to believe that lack of dreams may be a contributing factor to their illnesses.

 We dream of solving problems. Unconstrained by reality and the rules of conventional logic, in your dreams, your mind can create limitless scenarios to help you grasp problems and formulate solutions that you may not consider while awake. John Steinbeck called it the sleep committee, and research has shown the effectiveness of dreaming in problem-solving. Famous chemist August Kekule also discovered the structure of the benzene molecule, which is why sometimes the best solution to a problem is to sleep on it. And these are just some of the most important theories. As technology increases our ability to understand the brain, we may one day discover the ultimate reason. But until then 

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