NDLI: The role of daily activities in youths' stress physiology.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	McHale, Susan M. Blocklin, Michelle K. Walter, Kimberly N. Davis, Kelly D. Almeida, David M. Klein, Laura Cousino
Description	Country affiliation: United States Author Affiliation: McHale SM ( Department of Human Development and Family Studies, The Pennsylvania State University, University Park, Pennsylvania 16801, USA. mchale@psu.edu)
Abstract	PURPOSE: This study examined links between diurnal patterns of the stress hormone cortisol and time spent by adolescents in nine common daily activities. METHODS: During eight consecutive nightly telephone interviews, 28 youths (n = 12 girls), 10-18 years of age, reported their daily activities. On 4 days, four saliva samples were also collected and assayed for cortisol. Multilevel models assessed within- and between-person associations between time in each activity and cortisol area under the curve (AUC), cortisol awakening response (CAR), morning peak (30 minutes after wake up), and daily decline (morning peak to bedtime). RESULTS: Links with AUC were found for most activities; significant associations with cortisol rhythms suggested that most effects were due to anticipation of the day's activities. Specifically, on days when youths spent more time than usual on video games and television, they had lower AUCs, with lower morning peaks. Youths who spent more time reading (within-person) and in computer-related activities (between-person) had higher AUCs, with stronger CARs (within-person). Youths who slept more had lower AUCs, with lower morning peaks on both the between- and within-person levels. Amounts of time spent in clubs, and for older adolescents in sports, were also linked to lower AUCs. Finally, youths who spent more time in school/schoolwork had lower average AUCs, but on days when youths spent more time than usual in school, they had higher AUCs, stronger CARs, and steeper daily declines. CONCLUSION: Beyond their known implications for psychological adjustment, youths' everyday activities are linked to stress physiology.
File Format	HTM / HTML
ISSN	1054139X
e-ISSN	18791972
DOI	10.1016/j.jadohealth.2012.03.016
Journal	Journal of Adolescent Health
Issue Number	6
Volume Number	51
Language	English
Publisher	Elsevier
Publisher Date	2012-12-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Pediatrics Activities Of Daily Living Hydrocortisone Saliva Chemistry Stress, Physiological Physiology Stress, Psychological Physiopathology Adolescent Area Under Curve Circadian Rhythm Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Pediatrics, Perinatology and Child Health Psychiatry and Mental Health

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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