Depressed Mood and Loss of Interest
The dominant symptoms of Major Depressive Disorder are depressed mood and loss of interest in activities that were once experienced as enjoyable. A person with Major Depressive Disorder might feel low or sad, or might be experiencing more frequent episodes of tearfulness. Major Depressive Disorder also makes it more difficult for the person to feel interested, or motivated to engage in important activities of day-to-day life. Since changes in mood occur over a period of days or weeks, there are times when family members or friends might notice that someone is depressed even before the depressed person realises that he or she might be depressed.