5. Not everybody dreams in color. 12% of sighted people dream only in black and white. The remaining number dream in full colour. From 1915 to the 1950s, the majority of dreams were in black and white, but these results changed in the 1960s. Today, only 4.4% of the dreams of under-25 year-olds are in black and white. Those changing results may be linked to the switch from black-and-white film and TV to color media.
6. Dreams are symbolic. If you dream about some particular subject it is not often that the dream is about that. Dreams speak in a deeply symbolic language. Whatever symbol your dream picks on it is most unlikely to be a symbol for itself.
7. Emotions; The most common emotion experienced in dreams is anxiety. Negative emotions are more common than positive ones.
8. You can have four to seven dreams in one night. On average, you can dream anywhere from one or two hours every night.