What goes up ( from heart to brain ) must calm down ( from brain to heart ) ! Studies on the interaction between baroreceptor activity and cortical excitabilityl

"But when it comes to finding out how you and I, our children and grandchildren, may become more perceptive, more intensely aware of inward and outward reality, more open to the Spirit, less apt, by psychological malpractices, to make ourselves physically ill, and more capable of controlling our own autonomic nervous system A when it comes to any form of non-verbal education more fundamental (and more likely to be of some practical use) than Swedish Drill, no really respectable person in any really respectable university or church will do anything about it." Aldous Huxley, The Doors of Perception