Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Substance Use Disorders Affecting Sleep01:24

Substance Use Disorders Affecting Sleep

277
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
277
Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

554
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
554
Conduct Disorder01:28

Conduct Disorder

269
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;...
269

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Gender-specific associations among trauma type, sociodemographic conditions, and posttraumatic stress symptom severity: Evidence from a nationally representative Icelandic sample.

Journal of traumatic stress·2026
Same author

Maternal Caffeine Consumption and Pregnancy Outcomes.

Advances in experimental medicine and biology·2026
Same author

Longitudinal Test of Multiple Risk and Protective Factor Domains for Early Substance Use Onset: Implications for Primary Prevention Policy and Practice.

Substance use & addiction journal·2025
Same author

Neurobehavioral pathways linking socioeconomic status hardship to suicide risk versus resilience in young adolescents: the roles of sleep health and default mode network connectivity.

Translational psychiatry·2025
Same author

Adolescent mental health before, during, and after the COVID-19 pandemic in Iceland: a repeated, cross-sectional, population-based study.

The Lancet regional health. Europe·2025
Same author

Pubertal Development and the Onset of Substance Use Among Appalachian Youth: A Longitudinal Study.

Substance use & misuse·2025

Related Experiment Video

Updated: Nov 20, 2025

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine
08:33

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine

Published on: July 24, 2018

11.5K

Adolescent caffeine consumption and aggressive behavior: A longitudinal assessment.

Alfgeir L Kristjansson1,2, Steven M Kogan3, Jack E James4

  • 1Department of Social and Behavioral Sciences, School of Public Health, West Virginia University, Morgantown, WV, USA.

Substance Abuse
|January 25, 2021
PubMed
Summary

Adolescent caffeine consumption predicts aggressive behaviors over time. Even without prior aggression, higher caffeine intake in teens increases the likelihood of aggressive actions 12 months later.

Keywords:
CaffeineLIFECOURSEadolescentsaggressionstructural equation modeling

More Related Videos

Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice
07:15

Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice

Published on: March 15, 2024

2.0K
A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents
06:15

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents

Published on: July 10, 2017

13.2K

Related Experiment Videos

Last Updated: Nov 20, 2025

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine
08:33

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine

Published on: July 24, 2018

11.5K
Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice
07:15

Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice

Published on: March 15, 2024

2.0K
A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents
06:15

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents

Published on: July 10, 2017

13.2K

Area of Science:

  • Adolescent psychology
  • Behavioral science
  • Public health

Background:

  • Adolescent caffeine intake is a growing concern.
  • Previous research suggests a link between caffeine and aggression.
  • Longitudinal studies on this relationship are lacking.

Purpose of the Study:

  • To investigate the longitudinal relationship between adolescent caffeine consumption and aggressive behaviors.
  • To determine if caffeine intake predicts future aggression.
  • To explore direct and mediated effects.

Main Methods:

  • Analysis of two waves of survey data (2018, 2019) from the Icelandic LIFECOURSE study (N=2,278).
  • Inclusion of the 2004 birth cohort.
  • Utilized structural equation modeling with direct and mediated models.

Main Results:

  • Caffeine consumption at Time 1 (T1) predicted aggressive behavior at Time 2 (T2) (β = .12, p < .001), independent of prior aggression.
  • Aggressive behavior at T1 significantly mediated the relationship between caffeine at T1 and aggression at T2 (β = .20, p < .001).
  • Mediation accounted for over 64% of the total effect (β = .31) between caffeine intake and later aggression.

Conclusions:

  • Adolescent caffeine consumption is a significant predictor of aggressive behaviors.
  • Caffeine intake increases the risk of self-reported aggression 12 months later, regardless of baseline aggression levels.
  • Findings highlight the importance of monitoring caffeine consumption in adolescents due to its association with behavioral outcomes.