“…4 This topic is of special interest for us, since it is recently becoming more and more recognized that blood pressure variability influences on vascular events and ischemic diseases even over or independently to mean blood pressure values. 5,6 After reading the review, we still have an unresolved question: Is blood pressure variability, due to its recognized capacity to cause vascular damage, the cause of dementia or, is dementia, which is sometimes associated with dysautonomia, the cause of the increased variability of blood pressure?…”