How do self-reported stress and self-esteem relate to diurnal profiles of salivary alpha-amylase and cortisol in mid-adolescent girls and boys
(English)Manuscript (preprint) (Other academic)
Salivary cortisol and alpha-amylase (sAA), that reflect hypothalamo-pituitary-adrenal axis (HPA-axis) activity and sympathetic activity within the autonomic nervous system (ANS) respectively, are biomarkers with pronounced diurnal rhythms. While research on salivary cortisol is increasing, less is known about the diurnal rhythm of sAA, particularly in adolescents. Also, the linkages between individual factors, such as self-esteem, stress and the biomarkers cortisol and sAA and their combinations remain to be investigated. Besides detailing the diurnal rhythms of salivary cortisol and sAA in 14-16 year-old girls and boys, this study investigated how self-reported stress and self-esteem relate to aggregate measures of salivary cortisol and sAA and their combinations. In addition to self-reports in questionnaires, self-administered salivary samples were collected from 47 girls and 23 boys during a school day. Results showed that girls had higher levels of morning cortisol than did boys, while there were no differences in sAA. Moreover, self-esteem and stress were associated with cortisol and sAA measures, but for girls only. Taken together, the findings suggest that both stress and self-esteem are linked to both separate and combined measures of ANS and HPA-axis activity, particularly among mid-adolescent girls.
adolescence, ANS/SNS-markers, HPA-axis, stress, self-esteem
Psychology (excluding Applied Psychology)
IdentifiersURN: urn:nbn:se:su:diva-107166OAI: oai:DiVA.org:su-107166DiVA: diva2:743672
FunderForte, Swedish Research Council for Health, Working Life and WelfareThe Royal Swedish Academy of Sciences