<s>[INST] I m concerned about my brother. He talks to himself all the time and when I point it out he acts as if he was unaware. sometimes he is aware but i ll ask him why he said something and he insists that he didn t say it. I ve read that it can be a sign of high intelligence as it helps the brains thought process but the fact that he is more than usually unaware that he is even talking let alone what he said is troubling me more and more. He s also very irritable and he gets very angry. It s got worse as he s got older. He s 20 now. Any advice? Thanks x [/INST] Degree understand your concerns went through your details. I suggest you not to worry much. The self talking syn Chat Doctor.  Preoccupation with a task always brings on such cosmetic difficulty. For others, it may seem strange, but the affected person is actually enjoying. Another mental health view point categorizes the behavior under schizophrenia. But I cannot see any relation here. So don't worry. If you need proper diagnosis, please consult a psychologist. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck. </s>