Chronotype, Social Jet Lag, and Cardiometabolic Risk Factors in Early Adolescence.

ABSTRACT:

Importance

Inadequate sleep duration and quality increase the risk of obesity. Sleep timing, while less studied, is important in adolescents because increasing evening preferences (chronotypes), early school start times, and irregular sleep schedules may cause circadian misalignment.

Objective

To investigate associations of chronotype and social jet lag with adiposity and cardiometabolic risk in young adolescents.

Design, setting, and participants

Starting in 1999, Project Viva recruited pregnant women from eastern Massachusetts. Mother-child in-person visits occurred throughout childhood. From January 23, 2012, to October 16, 2016, 804 adolescents aged 12 to 17 years completed 5 days or more of wrist actigraphy, questionnaires, and anthropometric measurements. A cros

SUBMITTER: Cespedes Feliciano EM 

PROVIDER: S-EPMC6749538 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature