Why do we dream?

 Explaining a video


# tactiq.io free youtube transcript

# Why do we dream? - Amy Adkins

# https://www.youtube.com/watch/2W85Dwxx218


Why do we dream? - Amy Adkins


00:00:06.643 In the third millenium BCE,

00:00:08.412 Mesopotamian kings recorded and interpreted their dreams on wax tablets.

00:00:13.806 A thousand years later,

00:00:15.146 Ancient Egyptians wrote a dream book

00:00:17.248 listing over a hundred common dreams and their meanings.

00:00:20.654 And in the years since,

00:00:21.863 we haven't paused in our quest to understand why we dream.

00:00:25.650 So, after a great deal of scientific research,

00:00:28.121 technological advancement,

00:00:29.787 and persistence,

00:00:31.005 We still don't have any definite answers,but we have some interesting theories.

00:00:36.443 We dream to fulfill our wishes.

00:00:40.937 In the early 1900s,

00:00:42.494 Sigmund Freud proposed that while all of our dreams, including our nightmares,

00:00:46.512 are a collection of images from our daily conscious lives,

00:00:49.851 they also have symbolic meanings,

00:00:51.901 which relates to the fulfillment of our subconscious wishes.

00:00:55.464 Freud theorized that everything we remember when we wake up from a dream

00:00:59.154 is a symbolic representation

00:01:01.050 of our unconscious primitive thoughts,urges, and desires.

00:01:05.535 Freud believed that by analyzing those remembered elements,

00:01:08.489 the unconscious content would be revealed to our conscious mind,

00:01:12.182 and psychological issues stemming from its repression

00:01:14.747 could be addressed and resolved.

00:01:17.615 We dream to remember.

00:01:20.789 To increase performance on certain mental tasks,

00:01:23.192 sleep is good,

00:01:24.535 but dreaming while sleeping is better.

00:01:27.107 In 2010, researchers found

00:01:28.781 that subjects were much better at getting through a complex 3-D maze

00:01:32.767 if they had napped and dreamed of the maze prior to their second attempt.

00:01:37.476 In fact, they were up to ten times better at it

00:01:39.973 than those who only thought of the maze while awake between attempts,

00:01:44.211 and those who napped but did not dream about the maze.

00:01:48.739 Researchers theorize that certain memory processes

00:01:51.269 can happen only when we are asleep,

00:01:53.401 and our dreams are a signal that these processes are taking place.

00:01:58.202 We dream to forget.

00:02:02.544 There are about 10,000 trillion neural connections

00:02:05.053 within the architecture of your brain.

00:02:07.615 They are created by everything you think and everything you do.

00:02:11.510 A 1983 neurobiological theory of dreaming,called reverse learning,

00:02:15.869 holds that while sleeping,and mainly during REM sleep cycles,

00:02:19.490 your neocortex reviews these neural connections

00:02:22.765 and dumps the unnecessary ones.

00:02:25.329 Without this unlearning process,

00:02:27.095 which results in your dreams,

00:02:28.924 your brain could be overrun by useless connections

00:02:31.623 and parasitic thoughts could disrupt the necessary thinking

00:02:34.962 you need to do while you're awake.

00:02:37.303 We dream to keep our brains working.

00:02:42.815 The continual activation theory proposes that your dreams result

00:02:46.257 from your brain's need to constantly consolidate and create long-term memories

00:02:51.551 in order to function properly.

00:02:53.294 So when external output falls below a certain level,

00:02:55.792 like when you're asleep,

00:02:57.331 your brain automatically triggers

00:02:58.914 the generation of data from its memory storages,

00:03:01.588 which appear to you in the form of the thoughts and feelings

00:03:04.458 you experience in your dreams.

00:03:06.848 In other words,

00:03:07.724 your dreams might be a random screen saver your brain turns on

00:03:10.966 so it doesn't completely shut down.

00:03:14.200 We dream to rehearse.

00:03:18.145 Dreams involving dangerous and threatening situations are very common,

00:03:21.994 and the primitive instinct rehearsal theory

00:03:24.072 holds that the content of a dream is significant to its purpose.

00:03:27.790 Whether it's an anxiety-filled night of being chased through the woods by a bear

00:03:31.650 or fighting off a ninja in a dark alley,

00:03:34.188 these dreams allow you to practice your fight or flight instincts

00:03:37.657 and keep them sharp and dependable in case you'll need them in real life.

00:03:41.720 But it doesn't always have to be unpleasant.

00:03:43.947 For instance, dreams about your attractive neighbor

00:03:46.388 could actually give your reproductive instinct some practice, too.

00:03:50.571 We dream to heal.

00:03:54.512 Stress neurotransmitters in the brain are much less active

00:03:57.786 during the REM stage of sleep,

00:03:59.839 even during dreams of traumatic experiences,

00:04:02.428 leading some researchers to theorize

00:04:04.174 that one purpose of dreaming is to take the edge off painful experiences

00:04:08.632 to allow for psychological healing.

00:04:10.881 Reviewing traumatic event in your dreams with less mental stress

00:04:13.998 may grant you a clearer perspective

00:04:16.070 and enhanced ability to process them in psychologically healthy ways.

00:04:20.140 People with certain mood disorders and PTSD often have difficulty sleeping,

00:04:25.279 leading some scientists to believe that lack of dreaming

00:04:28.199 may be a contributing factor to their illnesses.

00:04:32.689 We dream to solve problems.

00:04:37.364 Unconstrained by reality and the rules of conventional logic,

00:04:40.263 in your dreams, your mind can create limitless scenarios

00:04:43.269 to help you grasp problems

00:04:45.256 and formulate solutions that you may not consider while awake.

00:04:49.295 John Steinbeck called it the committee of sleep,

00:04:51.527 and research has demonstrated

00:04:53.024 The effectiveness of dreaming on problem solving.

00:04:56.612 It's also how renowned chemist August Kekule

00:04:58.958 discovered the structure of the benzene molecule,

00:05:01.879 and it's the reason that sometimes the best solution for a problem

00:05:05.180 is to sleep on it.

00:05:06.920 And those are just a few of the more prominent theories.

00:05:10.293 As technology increases our capability for understanding the brain,

00:05:13.856 it's possible that one day

00:05:15.497 we will discover the definitive reason for them.

00:05:18.059 But until that time arrives,we'll just have to keep on dreaming.



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