When attention, memory, or mood is concerning after a blow, fall, or blast, you need not know the cause in advance. A specific change can begin a request for clinical assessment, with gaps in the history honestly retained. Early in this article, danger signs requiring immediate local emergency care are described separately. Other sections help prepare a question, choose an understandable record, and discuss relatives' involvement without household examinations. There is no self-diagnosis, medication prescription, or driving clearance here. You may read in parts and skip the philosophical passages. Difficulty with one agreement determines neither your worth nor automatic transfer of every decision to somebody else. Support can concern a particular task.