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Hippocrates

Is a doctor standing in for the gods?

Biology & Medicine· BC 400· Kos · Hippocrates· Ask

1min readUpdated 2026-09-29

That time, that place

On the island of Kos stood a school of healing. In those days the sick mostly went to a temple of Asclepius, slept a night there, and waited for the god to appear in a dream and cure them. Illness came from the gods.

Why this question

Among the writings of the Hippocratic school is one on the so-called sacred disease — epilepsy. People called it possession by a god. The text contradicts them head-on: this illness has natural causes like any other, and we call it sacred only because we do not know what those causes are.

What was found

That changes what a doctor does. Observation instead of prayer. See the patient daily and write it down by date: when the fever rises, how they sleep, how they breathe. Know the road an illness travels and you can guess what comes next.

And a principle is set: above all, do no harm. Meaning that when you do not know, it is better not to act. A medicine that begins by admitting its own ignorance.

The old idea

Illness was a punishment sent by gods

The evidence

Case records tracking each patient day by day

What followed

Yet the same school's theory of four humors produced two thousand years of bloodletting

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