Technology is often a consequence of science and engineering â although technology as a human activity precedes the two fields. For example, science might study the flow of electrons in electrical conductors, by using already-existing tools and knowledge.
Depends: Depends on your body mass, the type of anesthesia used, the length of the procedure, and how your body metabolizes the anesthetic agent. Usually mostly worn off in 30 minutes to 2-3 hours, but may have some residual effects for 24hrs or longer.
Long-term effects from general anesthesia are unlikely. A possible exception is postoperative cognitive dysfunction -- persistently reduced memory and thinking ability. The impairment may be subtle, usually resolves within 3 to 6 months, and is more common in older people and after major surgery.pinal anesthesia, for example, involves medication injected into the fluid around the spinal cord to produce numbness and weakness in the lower part of the body. After surgery, numbness and weakness persist for a period of time that depends on the injection location and medication used.