Each one gets the blues or feels sad or miserable from time to time. On the other hand, if a person experiences these emotions strongly and for long periods, then he or she may suffer from depression. Depression is a mood state that can extensively affect a person's entire life; major depression is a state that goes far beyond feeling sad or upset. Depression has a negative impact on a person’s mood, thoughts, feelings, behaviors, and physical or mental health. People with depression can lose the capability to feel enjoyment or pleasure in previously pleasurable activities or social relationships. People with depressive episodes may struggle with a loss of liveliness and enthusiasm, which can affect the capacity to be productive at work or school. Depression not only affects the productivity of people, but also their judgment, ability to work with others, and overall work performance. If the depression remains untreated, then it is a foremost risk for suicide because of deep desp...