IN 1846, THE FIRST ANESTHETIC TO be successfully used for surgery was publicly demonstrated. Ether was immediately declared, The greatest gift ever made to suffering humanity. Today's anesthetic drugs are different, but their importance has not lessened. It is the administration of safe and effective anesthesia that makes it possible for doctors to perform surgeries and other medical treatments that would otherwise kill their patients, or at least cause them great suffering.Anesthesiologists are physicians who provide relief to patients in pain. In the operating room, they deliver anesthetic drugs, usually intravenously, that render people unconscious for the duration of the surgery. They may also deliver a sedative to keep the patient calm and relaxed. During the surgery, anesthesiologists work alongside surgeons, carefully monitoring a range of vital signs to make sure the patient is safe, comfortable, and pain-free. Sometimes it is necessary to adjust the amount of anesthetic, chang