This book is written as a social necessity in order to help and protect millions of persons worldwide who are suffering unnecessarily because ordinary medical practice: so called orthodox medical practice, is incompetent and incomplete. Presently, orthodox medical practice excels in trauma, complicated obstetrics, anaesthesia, public health and resuscitation; in these fields, it tries to be scientific by using controlled trials and comprehensive surveys to question the validity of its precepts. Outside these parameters, medical practitioners serve the community very badly because they generally are unaware of interictal migraine as the main disease which requires treatment. Worse, their ignorance has been contrived in Australia by an intentional failure: by a concerted fraud, to address the science underlying the recovery of vision which occurs when the spine is treated by forced-thrust, spinal manipulation. This book provides a simple introduction to the new extension of orthodox health care, which is based on the treatment of interictal migraine; it describes the 'ischemic penumbra state' when it affects the 'intercapillary watersheds' of the nervous system