No one actually knows why people dream. Doctors have theories though. One theory that doctors have is: When you are at school, home, or somewhere, there are so many things that are going on that you don't think about during the day, night, etc. When you sleep, in other words dream, you think about all of the things that have happened. Also, during the day or night, if you are worried or upset, or feeling something about someone, something, etc., it all comes out. You think/ dream about it when asleep.
When people ask doctors and/or scientists," Does everyone dream?" Scientists and/or doctors say no. Some say that they are not sure. Some people don't dream. They can skip the 1st stage of sleep: REM (Rapid Eye Movement) sleep. Scientists and/or doctors don't really know why some people can do this. But they can.
There are 4 steps to sleep. REM stage is the dreaming stage. The REM stage of sleep stands for: Rapid Eye Movement. You can find out more on the stages of sleep in the other Dream sections.
Famous Dreams, Dreamers/Quotes