Plethora, or Fulness, is that state of the human fluids, and particularly of the blood, in which they abound to such a degree, as to prove hurtful to the animal functions.

Young persons that lead an indolent or luxurious life, especially females ; as well as those who have hastily suppressed any of the larger evacuations; or whose pursuits have been suddenly changed from an active to a sedentary employment, are particulerly subject to plethora ;—which is likewise often induced by the indulgence in sleeping, longer than Nature seems to require. Hence the patient becomes languid, weak, and unable to take the necessary exercise, for promoting the regular circulation of the blood; the pulse sinks, the action of the heart and arteries is speedily lessened ; he becomes affected with violent palpitation, and oppressed with great vertigo, or dulness.

Such are the symptoms that generally prevail in this complaint ; beside which, the vessels are frequently distended, and thrown into dangerous commotions. Thus, plethoric patients are peculiarly disposed to fevers, inflammations, haemorrhages, and a long train of chronical and other diseases; of which they are not easily cured, on account of their singular dislike to avail themselves of proper exercise.

Although plethora cannot with strict propriety be termed a disease, yet, as it is the parent of numerous maladies, we deem it useful to state a few bints for the relief of the plethoric. Such persons ought to adopt a more temperate diet; to take frequent and moderate exercise, especially by walking early in the morning ; to lose occasionally a few ounces of blood, by the application of leeches to the temples ; and to regulate the bowels by the mildest cooling laxatives, such as sweet whey, boiled prunes, roasted apples, etc If, however, the complaint originate from the cessation or suppression of any natural evacuation, the removal of such impediment, together with the attention paid to the regimen above directed, will in most instances restore the patient to his former health and vigour.