Theories on pneuma in the work of the late Byzantine physician John Zacharias Aktouarios

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Abstract

This chapter offers the first critical examination of On the Activities and Affections of the Psychic Pneuma and the Corresponding Regimen, written by the late Byzantine practising physician John Zacharias Aktouarios (ca. 1275–ca. 1330). It shows that John identified four distinct pneumata and introduced an innovative theory in which each of the four pneumata is correlated with two primary qualities (unnamed, ‘gastric’ pneuma: cold and moist; naturalpneuma: warm and moist; vital pneuma: warm and dry; psychic pneuma: cold and dry). Ultimately, he made a direct connection between the quality of pneuma and one’s daily regimen, including diet, physical exercise, bathing, and sleep, thus providing a systematic introduction of the qualitative change in pneuma as an object of treatment.
Original languageEnglish
Title of host publicationThe Concept of Pneuma after Aristotle
EditorsSean Coughlin, David Leith, Orly Lewis
Place of PublicationBerlin
PublisherEdition Topoi
Pages365-400
DOIs
Publication statusPublished - 31 Dec 2020

Publication series

NameBerlin Studies of the Ancient World
Volume61

Keywords

  • Byzantine medicine
  • John Zacharias Aktouarious
  • Joseph Rhakendytes
  • pneuma
  • regimen
  • diet

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