Human brain is an extremely complex ball of grey matter. Scientists have been experimenting to find out why and how the brain functions like it does. When it comes to sleep and dreams, scientists have been decoding them since decades and yet can’t give a 100% surety regarding the accuracy of findings.
However, the certain fact is that during the REM stage of sleep, the dream cycle is most abundant and widely remembered. The frequency of dreams varies from one person to another but every single individual does dream. It is still uncertain whether or not dreams have some kind of physiological, psychological or biological function.
DREAMS ASSIST LEARNING
Various theories regarding the occurrence of dreams have been in circulation since years. One theory believes that whatever information is collected during the waking hours, the brains sorts through that during the sleep. Dreams act as a catalyst in that process. Human brain is flooded with thousands of minute sensory information every single day. For example, the data you learn, the colors around you, any image that you see etc. gets etched in human brain. During the sleep, human brain sorts out from the pile to store the important information and delete the unnecessary stuff. Dreams assist in this process.
This is how memories are created. Various studies indicate that the data we learn during the waking hours gets enhanced during the sleep. This was proven by an experiment that took some participants learning a language course along with others who didn’t take the course and observed their dream activity. The result showed that the participants taking the language course showed higher signs of dream activity in comparison to the ones who did not. Such studies indicate that dreams help in conversion of short-term memories into long-term memories.
DREAMS REFLECT EMOTIONS
Other theory believes that dreams reflect our inner state of mind or emotions. During day, brain works hard to serve the mental functions along with laying focus on the work. Losing the focus leads to dangerous situations. During the nighttime, everything slows down and brain looses connections with reality.
During the dream cycle, the emotions experienced during the day surface up and battle. Whatever weighs heavily on the psyche during the day, chances indicate that it would surface up in the dreams. For example, people who are worried about being introvert and solitary might dream about wandering aimlessly in the abyss. Dreams increase the magnitude of emotions experienced during the day.
Until and unless the mysteries of human brain can be decoded, the exact function of dreams cannot be pinpointed.