Related Experiment Video
Updated: May 6, 2026
08:36
Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
13.3K
Changes in bedtime schedules and behavioral difficulties in 7 year old children
Yvonne Kelly1, John Kelly, Amanda Sacker
1Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, UK. y.kelly@ucl.ac.uk.
Pediatrics
|October 16, 2013
Summary
Establishing regular bedtimes in early childhood is crucial for children's behavior. Consistent sleep schedules significantly reduce behavioral difficulties, with improvements seen when routines are adopted.
Area of Science:
- Child Psychology
- Developmental Pediatrics
- Sleep Science
Background:
- Causal links between sleep disruption and behavioral problems in children are not well understood.
- Previous research has not clearly established the impact of bedtime routines on child behavior.
Purpose of the Study:
- To investigate the association between bedtime schedules and behavioral difficulties in children.
- To determine if the effects of bedtime schedules on behavior accumulate over early childhood.
- To examine whether changes in bedtime schedules correlate with changes in behavior.
Main Methods:
- Analysis of data from 10,230 children in the UK Millennium Cohort Study.
- Bedtime data collected at ages 3, 5, and 7 years.
- Behavioral difficulties assessed using mother and teacher ratings.
Main Results:
- Children with irregular bedtimes exhibited more behavioral difficulties.
- Exposure to non-regular bedtimes throughout early childhood incrementally worsened behavioral scores.
- Transitioning to regular bedtimes led to significant improvements in behavioral scores, while shifting to irregular bedtimes resulted in worsening scores.
Conclusions:
- Regular bedtimes in early childhood significantly influence children's behavior.
- Interventions supporting consistent family routines can positively impact child behavior and long-term health.
- Establishing consistent sleep routines is a key factor in promoting healthy child development.
Related Concept Videos
01:18Nightmares and Night Terrors
1.0K
Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares...
Nightmares...
1.0K
02:19Circadian Rhythms and Gene Regulation
3.4K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
3.4K
01:30Oppositional Defiant Disorder
1.5K
A persistent pattern of angry or irritable mood, defiant behavior, or vindictiveness characterizes Oppositional Defiant Disorder (ODD). Symptoms must occur over at least six months, involve interactions with individuals beyond siblings, and meet specific diagnostic criteria to be clinically significant. The disorder affects emotional regulation, social interactions, and behavior, often manifesting early in life and influencing long-term development and functioning.
Diagnostic Criteria and...
Diagnostic Criteria and...
1.5K
01:28Conduct Disorder
1.0K
Conduct disorder is a complex mental health diagnosis characterized by a repetitive and persistent pattern of behavior that violates societal norms, the rights of others, or age-appropriate rules. The diagnostic criteria for conduct disorder require the presence of at least three problematic behaviors within the past 12 months, with at least one occurring in the past six months. These behaviors are grouped into four categories: aggression toward people and animals; destruction of property;...
1.0K
01:15REM Sleep Behavior Disorder
2.9K
REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
RBD is significantly associated with...
2.9K
01:19Management of Insomnia
788
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
788