Most people are surprised to learn night terrors — or often called sleep terrors — impact a surprising number of adults. While the condition is most commonly associated with children between the ages of three and twelve, it is also known to affect adults. The exact causes of night terrors are relatively unknown, though adults that experience them often find that there is a genetic predisposition to do so. Sometimes they are attributed to post traumatic stress — especially when night terrors impact soldiers coming home from war and victims of violence. According to the Mayo Clinic, most night terrors in children will cease by the time the child is in his or her adolescence.