Title | Interindividual differences and intraindividual variability in the cortisol awakening response: an examination of age and gender. |
Publication Type | Journal Article |
Year of Publication | 2009 |
Authors | Almeida, DM, Piazza, JR, Stawski, RS |
Journal | Psychol Aging |
Volume | 24 |
Issue | 4 |
Pagination | 819-27 |
Date Published | 2009 Dec |
ISSN | 1939-1498 |
Keywords | Adult, Age Factors, Aged, Aged, 80 and over, Female, Humans, Hydrocortisone, Hypothalamo-Hypophyseal System, Individuality, Male, Middle Aged, Pituitary-Adrenal System, Saliva, Stress, Psychological, Wakefulness |
Abstract | <p>This article shows age and gender differences in the magnitude and day-to-day variability of the cortisol awakening response (CAR) using a national sample of 1,143 adults who completed the second wave of the National Study of Daily Experiences, a part of the Midlife Development in the United States survey. Participants between the ages of 33 and 84 years completed 8 consecutive nightly interviews and provided 4 saliva samples (upon waking, 30 min after waking, before lunch, and before bed) on 4 consecutive interview days. Results revealed substantial day-to-day variability in the CAR as well as significant AgexGender interactions, indicating that although no systematic age-related differences emerged for women, the magnitude and day-to-day variability of the CAR increased with age among men.</p> |
DOI | 10.1037/a0017910 |
Alternate Journal | Psychol Aging |
PubMed ID | 20025398 |
PubMed Central ID | PMC2810505 |
Grant List | R01 AG019239 / AG / NIA NIH HHS / United States R01 AG019239-06 / AG / NIA NIH HHS / United States P01 AG020166 / AG / NIA NIH HHS / United States |