title: Relationship of morning cortisol to circadian phase and rising time in young adults with delayed sleep times.
abstract: The present study was aimed at further elucidating the relationship between circadian phase, rising time, and the morning cortisol awakening response (CAR). The results presented here are a secondary analysis of experimental data obtained from a study of advanced sleep-wake schedules and light exposures on circadian phase advances measured by dim-light melatonin onset (DLMO). The present results demonstrate that morning CAR is strongly related to rising time and more weakly related to DLMO phase.
authors.affiliation: Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180-3352, USA.
authors.forename: Mark S
authors.initials: MS
authors.lastname: Rea
authors.forename: Mariana G
authors.initials: MG
authors.lastname: Figueiro
authors.forename: Katherine M
authors.initials: KM
authors.lastname: Sharkey
authors.forename: Mary A
authors.initials: MA
authors.lastname: Carskadon