Interindividual differences and intraindividual variability in the cortisol awakening response: An examination of age and gender.

• DOI: 10.1037/a0017910
• Publication Date: 2009-12-22T00:53:39Z
• Authors: David M. Almeida; Jennifer R. Piazza; Robert S. Stawski
• Keywords: Cortisol awakening response

This article shows age and gender differences in the magnitude day-to-day variability of cortisol awakening response (CAR) using a national sample 1,143 adults who completed second wave National Study Daily Experiences, part Midlife Development United States survey. Participants between ages 33 84 years 8 consecutive nightly interviews provided 4 saliva samples (upon waking, 30 min after before lunch, bed) on interview days. Results revealed substantial CAR as well significant AgexGender interactions, indicating that although no systematic age-related emerged for women, increased with among men.