Anesthesia is a medical practice that helps patients undergo surgeries and other procedures without feeling pain. It works by blocking the sensation of pain in specific areas of the body or by putting patients into a deep sleep. There are different types of anesthesia, including local anesthesia, which numbs a small area, and general anesthesia, which affects the entire body. Before receiving anesthesia, doctors assess the patient's health to choose the safest option. Anesthesia is administered by trained professionals, such as anesthesiologists, who monitor the patient's vital signs throughout the procedure to ensure their safety and comfort.