>> the last cause. >> if there is any other organ in my body can get broken and there is no shame, no stigma to it. my liver stops working, my lungs. hey, i got diabetes, my pancreas or adrenaline glands. if my brain is broken i'm supposed to feel bad about it. shamed. so a lot of people who should get help don't. >> kay, matthew from a very early age had suffered from depression. he was misdiagnosed, with bipolar and other conditions. in the end, you believe he was correctly diagnosed eventually. >> yes. >> with something called. >> borderline personality disorder. >> what is that? >> borderline personality disorder is a pervasive attachment, if you will, to mood swings, suicide ideation. it's a disregulation of emotions. there is usually a lot of difficulty in interpersonal relationships.