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Chap. 1. Of Want of Appetite, or Loathing of Meat.
INappetentia, and Loathing, is either from the abolished or diminished Action of the stomach: When it is Abolished it is called Anorexia, & Apositia: but when it is Diminished it is called Dusorexia, but by Custom Anorexia, & Apositia are used for both.
The Causes of this Disease are divers, which that we may bring into Order, let us consider the Natural Causes of Hunger or Appetite: These are called by Galen, lib. 1. de symp. caus. cap. 7. Symptomes: and are Five, The First whereof is emptiness of the parts. The Second is the Natu∣ral Appetite of those parts so emptied. The Third is the Sucking and Attraction of the Mesaraick Veins in the Stomach and Guts. The Fourth is the sense of their sucking in the Stomach. The Fifth is the Animal Appetite wch cometh from the Nerve in the mouth of the stomach which comes from the Brain, and is endued with great sense and feeling. As also the Melanchollick Humor which comes from the Spleen to the mouth of the stomach, which with its sharpness gnaws the inmost Tu∣nicle of the stomach, and is like sawce to stir up Appetite; which that it may be natural, it is necessa∣ry that al those Causes be in Order; for if there be any fault in either, then there is a hurt or hinde∣rance of Appetite.
Therefore the First Cause which is Emptiness of Parts, if it be wanting there is no Attraction made by them from other parts and the stomach, and so there is no Appetite: now this Emptiness is wanting either when the parts are filled with plenty of crude juyces, by reason of gluttony or drun∣kenness; or for want of exercise, or usual evacuations, or when there is so much fat that it is suffi∣cient to nourish the parts: Also the great stoppage of the pores of the skin, doth hinder the empti∣ness or the parts: or great weakness of the natural heat, so that it can disperse none or but little of the substance of the Parts: or the calling of that heat to the concoction of the matter of a Disease wher∣by the nourishment of Parts is neglected, as in Feavers.
The Second Cause is Natural Appetite, and the Attraction of nourishment to the stomach; and this is depraved when the Parts though empty, wil not draw by the veins, by reason they have lost their strength, but languish and forget their duty: As happeneth in acute, malignant, pestilential, syntectick, and hectick Feavers: And in immoderate evacuations, as in Flux of the Liver, Womb, Haemorrhoids, Bleeding at the Nose, Great Sweat, much Lechery, long Fasting, and the like.
The Third Cause is, The Attraction of the stomach by the Mesaraick Veins, which useth to be de∣praved by stoppage of those veins, by which means the empty Parts cannot attract their Chylus, nor make the mouth of the stomach sensible: so we may perceive in Children troubled with Struma, to consume by a long Flux of Chyle, by reason al the Mesentery is full of Glandles which stop its Veins, and hinder the passage of the Chyle to the Liver, by which means it is sent half concocted forth by siege, and the Parts are deprived of their necessary nourishment.
The Fourth and Fifth Causes, which are Sense of Sucking, and Animal Appetite, do require a good disposition in the Stomach, brain, and nerves: Therefore whatsoever can al••er their dispositions may also destroy Appetite; so every great distemper of the belly, especially if it be hot and dry doth hinder Appetite. Great heat by dispersing the moist substance of the stomach, doth take away Appetite; as also great Cold not only positive as when the bowels are so cold that they are stupified by Air, Water, Frost, Snow, and the like; but also privative, when the native heat is spent, which Galen cals Na••cosis or Stupefaction, as by long bleeding, feavers, and the like, by which the strength of the stomach and other Parts is consumed. Evil also and corrupt Humors; whether hot or cold, do cause want of Appetite: The hot are chollerick, adust, putrid, or virulent, whether they are bred in the stomach for want of Concoction, or brought from other infirm Parts.
The Cold Humors are, Flegmy and Slimy, gathered in the stomach by evil Concoction, or co∣ming from the whol body, as in them who by often Vomitings bring the corruption of other Parts into the stomach.
Or from the Brain by Catarrhs in which the stomalch useth to be troubled with Flegm: The sup∣pression of the Terms and Haemorrhoids also, by choaking and smoothering the natural heat do also diminish the Appetite.
Moreover, The distemper of the Brain and Nerves Cause that the Sucking is not flet in the stomach in them who have lost or depraved the Animal Faculty; therefore they are ••ick in mind, as in an A∣poplexy, Lethargy, Phrenzy, Madness, and the like; as also in a Palsie by reason of the Obstruction