Decline
Attacks on the theories surrounding the ability of tobacco to cure diseases had begun early in the 17th century. King James I was scathing of its effectiveness, writing " will not deigne to cure heere any other than cleanly and gentlemanly diseases." Others claimed that smoking dried out the humours, that snuff made the brain sooty, and that old people should not smoke as they were naturally dried up anyway.
While certain beliefs regarding the effectiveness of tobacco smoke to protect against disease persisted until well into the 20th century, the use of smoke enemas in Western medicine declined after 1811, when through animal experimentation Benjamin Brodie demonstrated that nicotine—the principal active agent in tobacco smoke—is a cardiac poison that can stop the circulation of blood.
Read more about this topic: Tobacco Smoke Enema
Famous quotes containing the word decline:
“The chief misery of the decline of the faculties, and a main cause of the irritability that often goes with it, is evidently the isolation, the lack of customary appreciation and influence, which only the rarest tact and thoughtfulness on the part of others can alleviate.”
—Charles Horton Cooley (1864–1929)
“The decline of a culture
Mourned by scholars who dream of the ghosts of Greek boys.”
—Stephen Spender (1909–1995)
“Our achievements speak for themselves. What we have to keep track of are our failures, discouragements, and doubts. We tend to forget the past difficulties, the many false starts, and the painful groping. We see our past achievements as the end result of a clean forward thrust, and our present difficulties as signs of decline and decay.”
—Eric Hoffer (1902–1983)