The Wine-Dark Sea Within: A Turbulent History of Blood

By: Dr. Dhun Sethna

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Synopsis: A revisionist history of medicine, in which blood plays the starring role Inspired by Homer&’s description of the ebb and flow of the &“wine dark sea,&” the ancient Greeks conceived a back-and-forth movement of blood. That false notion, perpetuated by the influential Roman physician Galen, prevailed for fifteen hundred years until William Harvey proved that blood circulates: the heart pumps blood in one direction through the arteries and it returns through the veins. Harvey&’s discovery revolutionized the life sciences by making possible an entirely new quantitative understanding of the cardiovascular system, a way of thinking on which many of our lifesaving medical interventions today depend. In The Wine-Dark Sea Within, cardiologist Dhun Sethna argues that Harvey&’s revelation inaugurated modern medicine and paved the way for groundbreaking advances from intravenous therapy, cardiac imaging, and stent insertions to bypass surgery, dialysis, and heart-lung machines. Weaving together three thousand years of global history, following bitter feuds and epic alliances, tragic failures and extraordinary advancements, this is a provocative history by a fresh voice in popular science.