Breakpoints of time in bed, midpoint of sleep, and social jetlag from infancy to early adulthood.

Objectives: The present study investigated sleep duration and sleep timing from infancy to early adulthood.

Methods: A cross-sectional survey study of N = 18,323 participants (9004 female) from 0 to 25 years (M = 12.36; SD = 5.

The Vivarium: Maximizing Learning with Living Invertebrates-An Out-of-School Intervention Is more Effective than an Equivalent Lesson at School.

The introduction of living invertebrates into the classroom was investigated. First, possible anchor points for a lesson with living invertebrates are explored by referring to the curriculum of primary/secondary schools and to out-of-school learning. The effectiveness of living animals for increasing interest, motivation, and achievement in recent research is discussed.

Morningness-eveningness correlates with sleep time, quality, and hygiene in secondary school students: a multilevel analysis.

At the onset of puberty, students shift their sleep to later hours, but school starts early. It is suggested that evening orientation and early school start times do not go well together. Therefore, the aim of this study was to investigate sleep problems in adolescence, and it was expected that the adolescents' eveningness orientation is associated with many sleep-related problems.