Definition of Depression

Depression is an illness in which factors such as genetics, chemical changes in the body and external events may play an important role. is a psychological condition that changes how you think and feel, and also affects your social behavior and sense of physical well-being.

Symptoms include sadness, inactivity, difficulty thinking and concentrating, and feelings of despair.

Depressive illnesses often interfere with normal functioning and cause pain and suffering not only to those who have a disorder, but also to those who care about them. A depressive disorder is not the same as a passing blue mood. Depressive disorders come in different forms, just as is the case with other illnesses such as heart disease.