- Meets criteria for either (a) major depression or dysthymia within a mild-to-moderate level according to standard criteria DSM-IV, or (b) minor depression as defined by one or more of the following symptoms at any time and for any duration during the past 12 months: significant weight loss or gain, or significant decrease or increase in appetite; poor sleep pattern; noticeable irritability or slowness; fatigue or lack of energy; inappropriate feelings of worthlessness or guilt; inability to concentrate; indecisiveness; and recurrent thoughts of death or suicide.