Related Experiment Video
Updated: Sep 21, 2025

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
Published on: July 29, 2020
Weekday breakfast habits and mood at the start of the school morning
Masato Kawabata1,2, Stephen Francis Burns1, Hui-Cheng Choo1
1National Institute of Education, Nanyang Technological University, Singapore 637616, Singapore.
Background:
Good nutrition, regular physical activity, and adequate sleep are important for promoting health. However, it is not well characterized how these lifestyle behaviours are associated with mood at the start of school days.
Aim:
To identify the weekday health-related behaviours (breakfast intake, physical activity, and sleep) of Singaporean adolescents and explore their associations with mood at the beginning of the school morning.
Methods:
365 adolescents (52.3% boys, 47.7% girls) aged 14-19 years (M = 16.9, SD = 1.3 years) completed a survey set on breakfast habits, physical activity participation, sleep duration, and mood.
Results:
More than one-third (38.6%) of participants never (15.0%) or irregularly (23.6%) consumed breakfast on weekdays. Adolescents consuming breakfast irregularly reported significantly higher negative mood scores than regular breakfast consumers (p = .002; d = .404). Almost two-thirds (64.1%) of adolescents did <60 min of moderate-to-vigorous physical activity (MVPA) on weekdays and reported lower positive morning mood scores than those who ≥60 min of MVPA (p = .014; d = .284). Although most (88.3%) adolescents slept <8 h each night, sleep duration was not related to either positive mood or negative mood.
Conclusion:
The present study suggests that eating breakfast on a regular basis and completing for ≥60 min of weekday MVPA are useful behaviours to start school days in a better mood. Parents and health educators should recognise the importance of establishing these habits and support students by instigating practical approaches so they can achieve a regular breakfast intake and physical activity engagement.
Related Concept Videos
Nonconscious Mimicry
First Impression
Cognitive Dissonance
Traits, Mood, and Subjective Wellbeing
Neuroticism and...
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
Self-Esteem

