Anesthesia is a state of temporarily induced loss of awareness or sensation to primarily achieve hypnosis, analgesia and muscle relaxation. There are varied drugs used for anesthesia such as general anesthetics, analgesics, neuromuscular-blocking drugs, etc. These drugs affect interconnected parts of the nervous system. Anesthesia is not a treatment on its own, but it facilitates other types of treatments, which would be too painful for the patient otherwise. An important stage of anesthesia is risk assessment, which is crucial for reducing anesthetic risks. It is a pre-operative procedure that covers the medical history, physical examination and lab tests, and obtains information about any medical conditions or genetic disorders that might afflict the patient. The various advancements in clinical anesthesia are glanced at in this book and their applications as well as ramifications are looked at in detail. It includes contributions of experts and scientists, which will provide innovative insights into the study of anesthesia. Researchers and students engaged in the study of anesthesia will be assisted by this book.