What creature was used for the medical treatment of bloodletting?
Bloodletting in 1623 on the uses of bloodletting to cure a broken heart. He recommended bloodletting to the point of heart failure (literal). Leeches became especially popular in the early nineteenth century. In the 1830s, the French imported about forty million leeches a year for medical purposes, and in the next decade, England imported six million leeches a year from France alone. Through the early decades of the century, hundreds of millions of leeches were used by physicians throughout Europe. Bloodletting was also popular in the young United States of America, where Benjamin Rush (a signatory of the Declaration of Independence)
Bloodletting Osler became prominent supporters of bloodletting in the 1880s and onwards, disputing Bennett's premise that bloodletting had fallen into disuse because it didn't work. These advocates framed bloodletting as an orthodox medical practice, to be used in spite of its general unpopularity. Some physicians considered bloodletting useful for a more limited range of purposes, such as to "clear out" infected or weakened blood or its ability to "cause hæmorrhages to cease"—as evidenced in a call for a "fair trial for blood-letting as a remedy" in 1871. Some researchers used statistical methods for evaluating treatment effectiveness to discourage bloodletting. But at