General anesthesia seems to have congnitive effects on everyone. There are some studies in the medical literature (http://www.ncbi.nlm.nih.gov/pubmed http://www

General anesthesia seems to have congnitive effects on everyone. There are some studies in the medical literature (http://www.ncbi.nlm.nih.gov/pubmed http://www.ncbi.nlm.nih.gov/pubmed) they are hampered by a lack of baseline (that is pre-anestheia) data and the fact that patients need to be high functioning before they recognize their cognative abilities have been impaired.