Generalized Anxiety Disorder (GAD)	Major Depressive Disorder (MDD)
Physiological: Restlessness, fatigue, muscle tension, sleep disturbances, irritability, and hypervigilance. Symptoms are unrelated to the effects of a substance or medical condition. Psychosocial: Persisting excessive apprehension, expectation of danger, and worry about a number of life events or activities.	Physiological: Diminished interest and pleasure (anhedonia). Low energy, or a decrease in efficiency to complete routine tasks. Significant changes in appetite. Psychosocial: A sense of worthlessness or excessive guilt. Impaired ability to concentrate or make a decision (rumination). Recurrent suicidal ideation, or suicide attempts.