ABSTRACT Migraine auras have some visual components. They lasted for the author usually 3 minutes but with exercise they continued for 11 minutes. In this self-experiment the author ensured an adequate supply of blood to his heart by the release of CGRP to ensure coronary vasodilation sustained for the duration of the exercise. Migraine auras can occur any time. They often but not always have some visual component such as zig-zag lines, or blind spots which may precede or follow the headache and may last anything from minutes to hours1. (See the figure) Keywords: Migraine auras, zig-zag lines, Blind spots