Transmission of another person's anxiety to the individual may also occur. Anxiety differs from fear in that the anxious person cannot identify the threat. With fear, the threat can be identified. However, fear and anxiety can be present simultaneously in an individual. The state in which the individual experiences, or is at risk of experiencing, a change in the quantity or quality of his rest pattern as related to his biologic and emotional needs.
Sleep disturbances are common in depression and can be the individual's first complaint.
Failure to treat this condition is a major cause of noncompliance with therapy. Lack of exercise, anxiety response. Often, the presence of depression can be deduced from a person's facial expressions and demeanour. Loss of interest or pleasure in activities is almost always present to some degree. Lack of motivation, indifference and displayal of a pessimistic attitude are frequent.