Nightmare Fredbear Render 2 by KingAngryDrake on DeviantArt
Nightmares can affect anyone, and when frequent, can harm sleep and daily life. Learn the causes and treatments of nightmares. It was not until the 16th century that the word nightmare came to mean a frightening dream. this meaning probably came from the belief that such dreams were caused by evil spirits. After all, aren't adults supposed to outgrow nightmares?.
