[Fragile brain--the very young and the old].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000375:Aging; D000758:Anesthesia / Q000009:adverse effects / Q000379:methods*; D001921:Brain / Q000378:metabolism*; D002648:Child; D002675:Child, Preschool; D003072:Cognition Disorders / Q000209:etiology*; D006801:Humans; D007223:Infant; D008875:Middle Aged; D055815:Young Adult