Major Depressive Syndrome is defined as a depressed mood or loss of interest in an individual's usual activities for at least ___________.

Major Depressive Syndrome is characterized by a persistent depressed mood or a significant loss of interest in activities that were once considered enjoyable. According to clinical guidelines, these symptoms must be present for at least two weeks to meet the criteria for major depression. This duration helps to differentiate between a temporary situation that may not require intervention and a more severe, chronic condition that necessitates treatment. Identifying a two-week period as a benchmark allows mental health professionals to properly assess the severity and impact of the symptoms on the individual's functioning and overall well-being.