Wake-up time in adolescence relates to overweight risk in early adulthood

Abstract

The shift toward later sleep onset and wake-up times in adolescence mismatch with unmodified school start times, resulting in insufficient sleep amount. This context might be related to higher body mass index (BMI). Given the current challenge for identifying variables that might contribute to weight gain, this issue is of relevance. Our main goal was to assess the effect of sleep-wake cycle (SWC) patterns in adolescence on BMI changes in young adulthood.