Why we dream or even why we sleep, no-one has actually discovered a scientific reason for either phenomenon?

Answer 1

ok that is your thinking.....read this and see what u think.

The Sleep Cycle

One sleep cycle comprises of four stages and last for about 90-120 minutes. There are some texts that list five stages in the sleep cycle. Some consider the first five-ten minutes when you are falling asleep as a stage in the sleep cycle. We feel this is more of a transitional phase. In addition, while the other stages of sleep repeat themselves throughout the night, this phase of sleep does not. For this reason, we have excluded t as part of the sleep cycle. Dreams can occur in any of the four stages of sleep but the most vivid and memorable dreams occur in the last stage of sleep (also commonly referred to as REM sleep). The sleep cycle repeats itself about an average of four to five times per night, but may repeat as many as seven times. Thus, you can see how a person has several different dreams in one night. Most people, however, only remember dreams that occur closer toward the morning when they are about to wake up. But just because you can't remember those dreams does not mean that they never happened. Some people swear on the fact that they simply do not dream when in reality, they just don't remember their dreams.Stage 1: You are entering into light sleep. This stage is characterized by Non-rapid eye movements (NREM), muscle relaxation, lowered body temperature and slowed heart rate. The body is preparing to enter into deep sleep.

Stage 2: Also characterized by NREM, this stage is characterized by a further drop in body temperature and relaxation of the muscles. The body's immune system goes to work on repairing the day's damage, the endocrine glands secrete grown hormone and blood is sent to the muscles to be reconditioned. In this stage, you are completely asleep.

Stage 3: Still in the NREM stage, this is a deeper sleep still. Your metabolic levels are extremely slow.

Stage 4: In this stage of sleep, your eyes move back and forth erratically. Referred to as REM sleep or delta sleep, this stage occurs at about 90-100 minutes after the onset of sleep. Your blood pressure rises, heart rate speeds up, respiration becomes erratic and brain activity increases. Your involuntary muscles also become paralyzed. This stage is the most restorative part of sleep. Your mind is being revitalized and emotions is being fine tuned. The majority of your dreaming occurs in this stage.

These stages repeat themselves throughout a night's sleep.

The Mechanics of Dreaming

While you are dreaming, your body has some noticeable changes. Your adrenaline rises, your blood pressure increases, and you heart beats faster. Given this notion, it makes sense why people with a weak heart may die in their sleep. Their heart may not have been able to withstand the strain of the erratic changes in your breathing and heart rates that occurs during the dream state. Dreaming takes place during REM, which stands for Rapid Eye Movement. It is thus called, because your eyes move rapidly

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back and forth under the eyelids. REM sleep takes place in the fourth stage of sleep and accounts for 15-20% of our sleep time. From the point you fall asleep, it takes 30-90 minutes before you start dreaming. We cycle through the 4 stages of sleep and may enter the REM stage 4-7 times in one night. During REM, our blood pressure and heart rate fluctuate and increase. It sounds like our body is going through a lot. In fact, it is quite the contrary. During REM our bodies are completely immobile and our muscles remain completely relaxed. We may shift in our bed throughout the night, but this does not happen when we are in REM. This is commonly known as "REM Paralysis".








The Importance Of Dreaming

Research have shown that people who are deprived from entering the dream phase of sleep (i.e. REM stage), exhibit symptoms of irritability and anxiety. In one dream study, volunteers were woken up right before they entered into the dream state. Then they were allowed to fall back to sleep. Again, right before they enter REM sleep, they were woken up. This continued on through the night. The volunteers slept the same amount of time as they normally did. The next day, these volunteers went about their day. They were observed to be disoriented, depressed, crabby, and quick tempered. There was a general impairment in their daily functioning. Some ate more than usual. As this study continued on through several nights, subjects became more and more noticeably agitated. Deprivation of REM sleep causes over-sensitivity, lack of concentration and memory loss.

This study shows the importance of dreaming and its role in our well-being and health. Some researchers believe that dreams help us tackle stress. It is clear that dreaming help recharge the mind and revitalize the body. Dreaming is a necessity.

Answer 2

Actually, there are physical reasons for both sleeping and dreaming. Scientific experiments were conducted on individuals which woke them up just at the point they were beginning to dream. The experiment had to be cut short because the individuals began experiencing psychotic episodes--their brains needed to dream to cope. Also, even though lying down will allow your body to rest somewhat, it is not enough to give it the kind of rest it needs.

Answer 3

Yes, people do know why we sleep and dream. Sleep is necessary to allow our minds to transfer short term memories to long term. That is why when you do not sleep you become confused and disoriented.

Dreams are our minds way of working out problems that we can not solve during the day. If you do not dream(ones that you remember, as everyone dreams) than you are a rather at peace person w/o multiple problems or conflicts in your life.

Answer 4

There were some sleep deprivation studies that showed the human being 'needs' sleep as a recouperative exercise. The dream state has been studied to show many purposes. It is a playground for the consciousness when the outer veneer of sociability is removed by the consciousness. Alpha states for meditation have also been studied.

Answer 5

There is no concrete answer that is agreed on but a popular idea is that dreaming is the mind's way of expelling all the unwanted information and helps you to deal with things and clear your head. The mind takes in so many thoughts and images even when you don't realise it, your subconscious is still at work. All that information has to go somewhere!

Answer 6

its as obvious as the nose on your face.if you never slept you would become a physical wreck and your mind would not function clearly.you would simply collapse from exhaustion.we are no different from animals in that respect.even machinery and computers cant run none stop,its inevitable they will break down.

Answer 7

I had a really interesting dream last night ummmmmm and now I have no reason for it.

Answer 8

We sleep so our bodies can repair itself. We dream to keep our selves alive during sleep.
That's my thinking anyway....lol

Answer 9

I wanted to ask this same quuestion .. Its strange but now i consider it as my extra movie.

Answer 10

Hope this helps.