By Maggie Vancampen —
Some of the scariest movies make appearances in our dreams and we call them nightmares. At least, if Pennywise started chasing people in their dreams it should be considered a nightmare.
According to the National Sleep Foundation, there are five main reasons people have nightmares: eating before bed, stress, medication, lack of sleep and sleeping disorders.
Eating before bed increases metabolism, which in turn makes the brain more active.
Some lifestyle changes, psychological counseling or medications may help with stress levels. This can decrease the frequency of nightmares.