According to the Mayo Clinic, depression is a pathological emotional state characterized by sadness; irritability; low energy level; loss of pleasure from normally enjoyable events; sleep disturbances, such as oversleeping or insomnia; anxiety; unexplained physical pain; and thoughts of death or suicide. Not all of these symptoms must be present for a person to be clinically depressed; however several are usually felt.Continue Reading
The National Institute of Mental Health explains that depression is part of several different mental disorders, including bipolar disorder, major depressive disorder, persistent depressive disorder, premenstrual dysphoric disorder, postpartum depression and seasonal affective disorder. Depression may also be comorbid with other disorders, such as borderline personality disorder, obsessive-compulsive disorder, panic disorder, social phobia, generalized anxiety disorder and post-traumatic stress disorder. People suffering from PTSD are particularly prone to comorbidity, with up to 40 percent of PTSD patients also experiencing depression.
Psychology Today explains that there is another type of depression that may cause a patient to lose touch with reality: psychotic depression. Patients suffering psychotic depression may suffer from sensory hallucination, delusions or a combination of both.
Depression is not the same as sadness, notes Psychology Today; it's a medical condition that affects a person in far more ways than commonly felt emotions. It affects patients in both psychological and physiological ways and requires treatment to be subdued.Learn more about Mental Health