title: Variation in epinephrine and cortisol excretion rates associated with behavior in an Australian Aboriginal community.
abstract: Urinary epinephrine and cortisol hormone output in a remote Australian Aboriginal community was on average about twice as high in those individuals measured on a Thursday or Friday as those measured at the beginning of the next week (Monday or Tuesday). Diastolic blood pressure was about 6 mm Hg higher in the Thursday-Friday group, but the difference in mean systolic blood pressure between the day groups does not reach statistical significance. These physiological differences are associated with a marked dichotomy in behavior in the two time periods: on the first 2 days, virtually all adults were involved in intense gambling activity for large stakes, but this was not a feature of the latter period. This behavior pattern occurs on a regular weekly basis. If substantiated by longitudinal studies, this phenomenon may provide an additional link between human behavior and a poor health profile mediated via the physiological consequences of high stress hormone output.
authors.affiliation: Department of Anatomy and Human Biology, The University of Western Australia, Nedlands, Australia. linc@anhb.uwa.edu.au
authors.forename: L H
authors.initials: LH
authors.lastname: Schmitt
authors.forename: G A
authors.initials: GA
authors.lastname: Harrison
authors.forename: R M
authors.initials: RM
authors.lastname: Spargo
mesh_terms: D000328:Adult; D000368:Aged; D001315:Australia; D001519:Behavior; D001794:Blood Pressure; D004837:Epinephrine / Q000652:urine*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000652:urine*; D008297:Male; D008875:Middle Aged; D013997:Time Factors
chemical_list: D006854:Hydrocortisone; D004837:Epinephrine