Borderline Personality Disorder (BPD) gets its name because researchers believed it to lie in the middle of psychotic illnesses and neurotic disorders ("Treatment of Borderline Personality Disorders") borderline personality”, 2010). Scientists believe there is a direct correlation between the brain receptors responsible for transmitting "opioids" and the behaviors demonstrated by people with this disorder (Bandelow, B; Schmahi, C; Falki, P; Wedekind, D. , 2010, pp. 623-636). Symptoms of BPD include “interpersonal hypersensitivity, fear of being left alone, self-injurious behaviors, and extremely impulsive behaviors” (Gunderson, John, 2011, pp. 2037-2042). Symptoms of the disorder typically manifest in early adulthood, primarily in women (Biskin, R. & Paris, J., 2012, p. 1789). The disorder can be treated by several methods, the most common being “psychopharmacological” treatment, which combines medication and group therapy (Ripoll, Luis, 2013). Borderline personality disorder can disrupt a person's life with a constant fear of abandonment, suicidal behavior, and erratic behavior; however, it can be combated with medication and group therapy. Where does borderline personality come from? According to the Diagnostic and Statistical Manual V, the disorder is fifty percent more common among primary parents than in the general population (American Psychiatry Association, 2013, p. 665). People who have a family member with borderline personality disorder are 65% more likely to develop this disorder (Gunderson, John, 2011). Detecting the disorder is difficult because no machine can detect differences in the brain (Biskin, R. & Paris, J., 2012). Onset of symptoms occurs during the first years of early adulthood...... middle of article ......personality disorder: dysregulation of the endogenous opioid system? Psychological review. 117(2), 623-636. Biskin, Robert and Paris, Joel. (November 6, 2012). Diagnosing borderline personality disorder. Canadian Medical Association. 184(16), 1789-1793. Gunderson, John G. (May 26, 2011). Borderline personality disorder. The New England Journal of Medicine. 364(21), 2037-2042. Mental illness. (November 2012). National Alliance on Mental Illness. Retrieved from http://www.nami.org/Content/NavigationMenu/Inform_Yourself/About_Mental_Illness/By_Illness/Borderline_Personality_Disorder.htmRipoll, Luis H. (June 2012). Psychopharmacological treatment of borderline personality disorder. Dialogues in clinical neuroscience. 15(2), 213-224.Treatment of borderline personality disorder. (June 2010). Harvard Health Publications. The Harvard Letter on Mental Health.