What is depression index? Is there simple technique measuring depression?

Recognizing the Symptoms Associated with Depression

Depression is a prolonged and persistent negative mood, which usually affects an individual's work performance interpersonal relationships and quality of life. Active duty personnel who do not improve substantially with a 12 month course of treatment will usually undergo a Medical Evaluation Board.

While sadness is key sign of depression, it is sometimes not readily apparent (i.e. people can hide their moods). It is therefore important to recognize that Sailors who are depressed often show several other signs, including a significant change in behavior. A talkative person, for example, may suddenly become silent and detached from others. The following signs are often associated with depression:

* Persistent feelings of sadness
* Loss of interest in pleasurable activities
* Apathy at the workplace/decline in work performance
* Difficulty sleeping
* Change in appetite or weight
* Poor focus and concentration
* Feeling fatigued (lack of energy)
* Statements of excessive guilt
* Hopelessness
* Restlessness, irritability or easily agitated
* Thoughts of suicide
* Engaging in unsafe behaviors (reckless driving, driving while intoxicated, and decreased safety