What are some of the main symptoms of major depressive disorder?

Answer:

Responses may vary but should include some or all of the following information: Individuals suffering from depression may lose interest in socializing with family and friends as well as in activities that they would otherwise enjoy doing. They often do not have much energy, may have difficulty concentrating, and display a change in their eating and sleeping habits. They will also complain of headaches or stomach aches and have common negative emotions such as sadness, hopelessness, guilt, or feelings of being worthless.