Although dreams may mean nothing, many people take them seriously. Most people believe that dreams contain important hidden truths about the individual, and that dreams express current concerns and occupations. Others consider dreams unimportant. While other cultures are able to remember what they dream, Americans are more likely to not remember their dream. This is because dreams are very ordinary and occur very often. Many different factors influence how people dream. Dreams are very vulnerable to disruption due to mental and physical health issues. Americans are more susceptible to depression and anxiety, which are often accompanied by nightmares. Depressed or anxious people are more likely to have stressful and frightening dreams. These dreams often repeat themselves on a daily basis