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Reviewed by Neha Pathak on December 19, 2017

Sources

Mayo Clinic: "Depression (major depressive disorder)."<br>National Institute of Mental Health: "Depression Basics."<br>National Institute of Mental Health: "Depression: What You Need to Know."<br>National Library of Medicine: "The Link Between Depression and Physical Symptoms."<br>Harvard Health Publishing: "Recognizing the 'unusual' signs of depression."<br>National Library of Medicine: "The relation of weight change to depressive symptoms in adolescence."<br>National Library of Medicine: "Psychomotor activity in unipolar and bipolar depressive patients."<br>DSM-5TM Diagnostic Criteria: "Major Depressive Disorder."

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