Association of family meals with sleep and quality of life in Japanese preschool and elementary school children: A cross-sectional study.

Sleep is crucial for children's health and eating habits. The decline in family meals has raised concerns about its impact on children. Previous research indicated associations between family meals and psychological health and dietary habits, but their relationship with sleep behavior is less understood.

Association of Night Snacking and Screen Time on Sleep Behavior in Japanese Toddlers: A Cross-Sectional Study.

Background/objectives: Irregular lifestyles, such as sleep deprivation and disordered eating, disrupt the circadian clock and are linked to health issues. This study investigates the relationship among chronotypes, social jet lag, night-snacking habits, and screen time in toddlers.

Methods: A survey of 6177 mothers of children aged 3-8 years was conducted in June 2022.

Association of breakfast styles such as Japanese, Western, and cereals with sleeping habits, eating habits, and lifestyle in preschool and elementary school children.

Introduction: In Japan, breakfast styles are categorized into five groups; Japanese breakfast (JB; rice and miso soup), Western breakfast (WB; bread and milk), Japanese-Western breakfast (J-WB; alternative daily serving), cereal breakfast (CB), and breakfast skipping. In our recent studies, breakfast style was highly associated with the daily sleep-wake phase (chronotype), and healthy eating habits. In contrast with other breakfast style consumers, JB-consumers were positively associated with the morning chronotype and healthy eating habits such as a high consumption of a variety of protein sources, vegetables, and dietary fibers, and low consumption of sweetened juices.

Interaction effects of sex on the sleep loss and social jetlag-related negative mood in Japanese children and adolescents: a cross-sectional study.

Study Objectives: Sleep problems, such as accumulated sleep loss and social jetlag (SJL), which is characterized by a discrepancy in a person's sleep pattern between the weekday and the weekend, are associated with physical and mental health problems, and academic performance in young ages. However, sex differences in these associations are not fully understood. The purpose of this study was to investigate the effect of sex on sleep-related factors, mental health (negative mood), and academic performance in Japanese children and adolescents.

In defense of unresolved attachment: re-modelling intergenerational transmission of attachment.

Intergenerational transmission of attachment is one of the core hypotheses of attachment theory. How parents or other caregivers look back on their childhood attachment experiences is suggested to shape their infants' attachments. In the current paper, we show that a new twist to correspondence analysis (Canonical Correlation Analysis [CCA]) of cross-tabulated attachment classifications with oblique rotation Correspondence Analysis (CA) may uncover the latent structure of intergenerational transmission showing the unique role of parental Unresolved representations in predicting infant Disorganized attachments.

Rotation in Correspondence Analysis from the Canonical Correlation Perspective.

Correspondence analysis (CA) is a statistical method for depicting the relationship between two categorical variables, and usually places an emphasis on graphical representations. In this study, we discuss a CA formulation based on canonical correlation analysis (CCA). In CCA-based formulation, the correlations within and between row/column categories in a reduced dimensional space can be expressed by canonical variables.