title: By the way, doctor.  I heard about a study that found people who sleep six and a half to seven hours a night will live longer that those sleeping eight to nine.  What is the right amount of sleep?
authors.forename: Anthony L
authors.initials: AL
authors.lastname: Komaroff
mesh_terms: D006304:Health Status; D006801:Humans; D012890:Sleep / Q000502:physiology*; D013997:Time Factors