According to the National Sleep Foundation, why we dream is still a mystery but some researchers believe that dreams might have a physiological explanation. While it’s known that our brain is quite active while we sleep and thus, dreams may be a side effect of that activity, not much more is known.
There are theories that say that dreams integrate emotions and memories and do problem-solving — which may be why we sometimes say that we will “sleep on the subject” before making a decision.
Another interesting fact is that 12% of the world population dreams in black and white and, for most people, it might seem weird to think that anyone would experience colourless dreams in an age of high-definition television and vivid cinematography. Actually, in the 1940s, studies showed that three-quarters of Americans, including college students, reported “rarely” or “never” seeing colour in their dreams.
Insomnias? We have a solution here.
The dream phase can be the most emotionally intense part of the day. Flying, falling, failing exams and being chased are among the most usual events when people are asked to detail their dreams.