We all see dreams when we are sleeping. But ever you thought about it, that why we see dreams. Do you know this is one of those questions whose exact answer scientists don't find till now. But there are lots of theories on it. Today i'm going to tell you about best one among them.
The topic dreams is that much complicated that there is a seperate branch of science to can study about dreams ,that field is called “ Oneirology ”. In any experiment where people are asked about what they seen in their dreams there answer will be unreliable. Infact all people forgets his 95% dreams within 10 mins of waking. That's why when we wakeup we see some flashbacks of our dreams after that we keep trying to think what we had seen in our dreams.
When any person sleeps there can be two states occurs:
REM state is very special state as we see our all dreams when we are in REM state. When we are sleeping and our body is in REM state our eyeballs inside our eye starts to move from left to right and vice-versa. In an scientific research when the brain and eyes of a sleeping person are recorced when they are dreaming. The results of the experiment shocked the researchers as they found that our eye balls starts moving when we see dreams in REM state and During dreaming our brain reacts in same way as it reacts when we are awake.
It means our brain uses a good amount of energy during dreaming and we say we are giving our brain rest. During our sleep brain don't excrete chemicals like Histamine, Serotonine etc. thats why we can experience different emotions at a same time during dreaming and our body remains at rest (sleeping). But in some cases these chemical doesn't works properly and leads to problems like Sleep walking. Even some time people open their eye during dreaming but brains thinks that he is in REM states thats why for few secs the persons will experience a short time paralysis which very common (not a big issue or disease).
Now, what's the exact reason behind dreaming? Suppose you takes guitar class daily. So when you will sleep your brain will collect all your learned leasons and would save that lesson in your brain in proper way as you could use that skill (guitar lessons) easily next time and in more efficient way. All these functions are done by our Unconcious-brain. So when our unconcious brain do these works then our consious brain faces difficulty to understand what is happening in our brain. So our concious brain took randon images and clips from those memories and shows us and also it tries to find some meaning from these random memory clips and images. Thats why, sometime we feels hat what we seen in our dreams was very meaningful.
