Coma and general anesthesia demonstrate important similarities

The brain under general anesthesia isn't "asleep" as surgery patients are often told -- it is placed into a state that is a reversible coma, according to three neuroscientists who have recently published an extensive review of general anesthesia, sleep and coma. This insight and others reported in their review article could eventually lead to new approaches to general anesthesia and improved diagnosis and treatment for sleep abnormalities and emergence from coma.

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