A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate and an opposing second substrate; a first pixel electrode and a second pixel electrode disposed in a pixel area, on the first substrate, and including a plurality of branch electrodes; and a liquid crystal layer interposed between the first and second electrodes. By selectively and controllably activating baroreceptors andor nerves, the present invention reduces blood pressure and alters the sympathetic nervous system; thereby minimizing deleterious effects on the heart, vasculature and other organs and tissues. The processing unit instructs the control unit to update the data stored in the first memory depending on a result of the processing for determining whether the header of the IP packet has been properly received.