Hippocrates

Classical Greece

When the gods owned disease

Hippocrates was the first physician in the Western record to insist that disease has natural causes rather than divine ones. He was born around 460 BCE on the Aegean island of Kos and died around 370 BCE, and Plato, writing within living memory of him, calls him Hippocrates of Kos, the Asclepiad, placing him inside a hereditary guild of physicians who traced their descent from the healing god.

Before him, sickness belonged to the gods. A fever was a punishment. A seizure was a visitation. Medicine, where it existed, was largely temple work, and the sick slept in the sanctuaries of Asclepius waiting for the god to arrive in a dream. In On the Sacred Disease, the Hippocratic writers took the most sacred affliction of all, epilepsy, and refused the explanation. The same treatise puts judgment, emotion and consciousness in the brain rather than the heart or the heavens.

That single move created the possibility of everything that follows on this timeline. If the body runs on its own mechanisms, then the body can be studied, and what governs it can be found.

The method

He chose to watch

Hippocratic medicine replaced speculation with observation, and its instrument was the written case. The Epidemics record individual patients day by day, including the ones who died, which is a discipline most of medicine would not recover for two thousand years.

His stated first excellence was not treatment but prognosis. The Book of Prognostics opens by arguing that the physician should be able to state the present, the past and the future of a case in the presence of the patient. The payoff he names is twofold: the patient trusts you, and you know in advance which cases lie beyond your reach. That is pattern recognition built from watched cases, not theory applied to a body.

Against theory

Medicine needs no empty hypothesis

On Ancient Medicine is a direct attack on physicians who begin from a postulate and reason downward into the patient. The treatise rejects starting from hot, cold, moist and dry, and argues that medicine already possesses a principle and a method discovered over a long stretch of time, and therefore stands in no need of an empty hypothesis of the kind that suits occult and dubious subjects.

Ask what that commits you to. If you refuse to explain the body by a scheme imposed from outside it, you are left with one honest option, which is to find the ordering principle inside the organism itself. The Hippocratic writers went looking for it, and what they found they described as a balance.

The first balance model

Health is a proportion, not an absence

The Hippocratic definition of health is the oldest surviving statement that health is a state rather than the absence of an invader. On the Nature of Man holds that the body contains blood, phlegm, yellow bile and black bile, that these constitute its nature, and that a person enjoys the most perfect health when they are duly proportioned to one another and perfectly mingled. Pain and disease arise when one is in excess, in defect, or separated out and standing alone. Later Greek medicine named the good mixture eucrasia and the disturbed one dyscrasia.

The four fluids are long obsolete. The structure underneath them is not. Strip out the humors and the claim that remains is this: the body is a system holding many variables in relation, health is the quality of that relation, and disease is what happens when the relation is lost. Every balance model of health since is a descendant of that sentence, including this one. We would put it differently now, and say the nervous system is the thing doing the holding, and that the quality of the holding is tone.

Physis

The body already knows the way back

The Hippocratic writers held that living things tend back toward order without being instructed, a principle they carried in the word physis, the innate nature of a thing. The idea is condensed in Epidemics 6, usually rendered as nature being the physician of diseases, with the continuation that nature finds ways and means by itself and not as a result of thought.

The Latin tag that later attached to this, vis medicatrix naturae, is not Hippocratic wording, but the principle genuinely is. It sets the physician's job for the next two thousand years. You are not the one who heals. You are the one who observes the direction the organism is already moving, removes what obstructs it, and stays out of the way. Chiropractic would arrive at the same posture in 1895 by a different road.

On Joints

Know the spine first

The Hippocratic Corpus instructs the physician to learn the structure of the spine before anything else, and gives the reason plainly, that this knowledge is required across many diseases (On Joints 45). The instruction opens the spinal section of On Joints, the treatise that carries the most detailed spinal anatomy and treatment surviving from antiquity.

The description that follows is careful. The vertebrae are joined in front by a soft ligamentous band and articulate behind by a hinge joint, cords run out from the spine to parts both inside and outside the body, and the column carries a natural longitudinal curvature rather than standing straight. The Corpus also gave medicine the words kyphosis and scoliosis, which are still in use.

Structure and function

What the spine carried with it

On Joints 41 records that spinal deformity travels with organ trouble, and it is specific about which. When the hump forms high in the spine, the ribs fail to expand outward and grow forward instead, the chest becomes narrow and pointed, the cavities that draw and expel breath do not reach their proper capacity, and the patient develops difficulty breathing and hoarseness. When the curvature sits lower, the text reports trouble in the kidneys and bladder and chronic abscesses in the loins and groins.

Be exact about what this is and is not. The causal story in the text is tuberculous disease of the spine and the mechanical distortion of the chest that follows, not nerve interference, and the reading stops there. What is genuinely his is the observation itself, made twenty three centuries before imaging, that the form of the spine and the function of the organs do not live in separate compartments.

The instruments

The board, the lever, and the trained hand

Hands on spinal care is documented in Western medicine 2,300 years before 1895. On Joints 47 describes a strong broad board fixed in the ground with an oblong furrow, extension applied with axles and straps fastened beside the bench, and a lever board of limewood driven through a hole in a wall or an upright post so that one or two people can bear down on its end while others maintain traction and counter traction. Historians of orthopedics (Vasiliadis 2009) distinguish the Hippocratic board, which combines axial traction with focal manual pressure, from the scamnum, which works by leverage over a fulcrum, and describe both as ancestors of modern traction.

The manual instruction is the part worth reading twice. The physician, or a person who is strong and not uninstructed, places the palm of one hand on the hump, lays the other hand on top of it, and makes pressure while extension is applied. Not uninstructed. Force on a spine was already understood as a trained skill with a right and a wrong way to deliver it.

Skill over spectacle

He had no patience for showmanship

Hippocrates knew succussion, the practice of binding a patient to a ladder and dropping it to shake the spine straight, and he wrote that it never straightened anybody as far as he knew, and that it was principally practiced by physicians who wanted to astonish the mob. He set out how to do it properly anyway, on the grounds that it is disgraceful in every art, and more especially in medicine, after much trouble, much display and much talk, to do no good after all.

That is a working standard, not an insult. The question he is asking of any technique is the only question worth asking. Did the patient get better, or did the room get impressed. Every honest practitioner since has had to answer it.

The inheritance

What he handed forward

The Hippocratic Corpus runs to about sixty treatises, written by many hands across the late fifth and early fourth centuries BCE, and none is proven to be by Hippocrates himself. One nineteenth century editor counted at least nineteen distinct authors. The collection matters less as one man's writing than as the moment a method got written down.

Galen carried it forward in the second century CE and became the channel through which it reached the Islamic world and medieval Europe. Vesalius corrected its anatomy in 1543. Case taking of the Hippocratic kind lapsed for centuries and was revived by Sydenham, Heberden, Charcot and Osler. And the principle underneath all of it, that health is a proportion the body actively maintains and the physician's job is to support the maintaining, is the thread this entire timeline follows. Nearly every figure who comes after is still walking it.

Hippocrates and the model

Two Hippocratic claims still stand inside the Unified Model of Tone

The Unified Model of Tone compresses its whole argument into one sentence: health is well regulated tone, disease is dysregulated tone. Behind that sentence sits a definition Hippocrates would recognize. A healthy system changes its rhythms constantly. Heart rate rises to climb stairs and falls to sleep, muscle tone increases to lift and releases to rest, and the ability to move through that range on demand is what regulation means. Health is the range. On the Nature of Man made the same structural claim about different quantities: many variables held in due proportion, health as the quality of the relation, disease as its loss. Eucrasia is health as a range, stated twenty three centuries before the instruments existed to measure one.

Dyscrasia maps just as cleanly onto the model's account of disease. Dysregulation is the loss of range: something in the body stays where it is whatever is asked of it. It costs energy to hold, it no longer fits the moment, and because everything in the body is coupled it limits what the rest of the system can do. That is the humor in excess or separated out and standing alone, translated from fluids into regulation. Health is the range of possible states; disease is collapse into a single one. Walter Cannon later named the body's defense of its own values homeostasis.

Physis carries the model's closing law. The model ends on this: the healing itself is always done by the body, and the clinician's role, across every profession, is to change the conditions so the body can find its own coherence. A medication that blocks a receptor, a surgery that removes a burden, a changed diet that clears an irritant: each one initiates a process the body completes. Epidemics 6 said it first. Nature is the physician of diseases, finding ways and means by itself and not as a result of thought. Chiropractic built its founding philosophy on the same law in 1895, and bound it to tone by name in 1910.

The credit boundary is exact. The proportion is his. The self-righting nature is his. The model supplies what he could not: the nervous system as the organ doing the holding, and tone, the organization of the body's oscillations, as the quantity being held. Eucrasia named the balance. Tone names what is doing the balancing.

Corrections

What Hippocrates never said

Three sentences carry his name everywhere, and none of them is his. Look well to the spine for the cause of disease appears in no translation of the Hippocratic Corpus, and no source carrying it names a treatise, a section or a translator. The sentence he did write, in On Joints 45, makes the stronger point: one should first get a knowledge of the structure of the spine, for this is also requisite for many diseases. An instruction to master spinal anatomy, from the father of medicine, needs no forgery to improve it.

Let food be thy medicine and medicine be thy food is in no treatise of the Corpus either. A 2013 review by Diana Cardenas traced the attribution and found a widespread misquotation, one sitting at the root of a larger misconception about how ancient medicine understood food and drugs (Cardenas 2013).

Primum non nocere is not Hippocratic Latin, because Hippocrates wrote no Latin. The phrase has been traced back no further than an 1860 book by Thomas Inman, which attributed it to the seventeenth century physician Thomas Sydenham (Smith 2005). The genuine ancestor is Greek, from Epidemics, book one: the physician must have two things in view with regard to disease, to do good or to do no harm. Each myth dies the same way. The real sentence exists, and it is better than the invented one.

What the record shows

The Hippocratic record survives in specifics

• c. 460 to 370 BCE. Hippocrates lived on the Aegean island of Kos. Plato, writing within living memory of him, names him the Asclepiad, a member of a hereditary guild of physicians (Protagoras 311b).
• Epilepsy, late fifth to early fourth century BCE. On the Sacred Disease refused a divine cause for the most sacred affliction of all and placed judgment, emotion and consciousness in the brain rather than the heart or the heavens.
• Four fluids, one structure. On the Nature of Man defines health as blood, phlegm, yellow bile and black bile duly proportioned and perfectly mingled; the fluids are obsolete, and the definition of health as held proportion outlived them.
• On Joints, sections 41 to 48. The most detailed spinal anatomy and treatment surviving from antiquity, carrying the instruction to learn the structure of the spine first and the words kyphosis and scoliosis, both still in use.
• 2,300 years before 1895. On Joints 47 documents hands on spinal care: a strong board fixed in the ground and traction by axles and straps. A trained operator pressed the palm of one hand on the hump with the other on top of it.
• At least nineteen authors. One nineteenth century editor counted that many distinct hands in the roughly 60 treatises of the Corpus, written across the late fifth and early fourth centuries BCE; none is proven to be by Hippocrates himself.
• 1543. Vesalius corrected the Corpus anatomy in that year; Galen had carried the system from the second century CE into the Islamic world and medieval Europe, and Sydenham, Heberden, Charcot and Osler revived its case taking.