Hippocrates

Their life

The father of medicine. On the island of Kos he separated healing from superstition — insisting diseases have natural causes to be observed at the bedside, not divine ones to be appeased — and founded a school whose case notes, aphorisms, and oath made medicine a profession with ethics at its center. Physicians still take a version of his oath.

Known for

• Hippocratic Corpus
• Hippocratic Oath
• Four humors theory
• Bedside clinical observation
• Rejecting divine causes of disease
• Kos school of medicine

The road they walked

Hippocrates was born around 460 BC on Kos, a small Aegean island already known for its sanctuary to Asclepius, the god of healing. He came from a family of Asclepiads — a hereditary guild of physicians who traced their lineage, at least symbolically, back to Asclepius himself — and by tradition he trained under his father Heraclides before traveling and eventually teaching at Kos's own medical school. Almost everything else about his personal life comes down to us secondhand, often centuries after the fact, so the man is harder to pin down than the ideas that carry his name.

He practiced medicine in a Greece transformed by new habits of thought. Philosophers like Empedocles and Democritus were arguing that the natural world ran on comprehensible physical causes rather than divine whim, and that same spirit reached into the healer's craft. Disease had long been treated as a matter for temple priests, incubation rituals, and appeals to Asclepius at shrines like the one on Kos itself. The physicians associated with Hippocrates broke from that model, arguing that illness arose from imbalances in the body — famously codified as the four humors — that could be tracked through symptoms, environment, and patient history, and treated accordingly.

What survives as 'Hippocratic' is really a library: the Hippocratic Corpus, some sixty-odd treatises on prognosis, epidemics, surgery, and regimen, written by many hands over roughly two centuries and later gathered under his name by scholars at Alexandria. Galen, writing five hundred years afterward, treated Hippocrates as medicine's founding authority and helped fix that reputation for good. Whatever portion of the Corpus Hippocrates wrote himself, the outlook it embodies — careful observation, honest prognosis, and a code of professional conduct — became the seed of medicine as a discipline rather than a craft of charms.

How their story ended

Hippocrates is thought to have died around 370 BC, in his eighties or nineties, most likely in Larissa in Thessaly. Reliable details are scarce — the fullest ancient biography, by Soranus, was written some five centuries later and mixes plausible fact with legend, including stories of his travels, his refusal to serve the Persian king, and his old age still teaching students. No contemporary account of his death survives, so historians treat the particulars as tradition rather than established record, closing out a life whose ideas are far better documented than the man himself.

In their words

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From the Journal