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Caffeine intake and cognitive functions in children.

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Pediatrics

Background:

  • Growing concern regarding excessive caffeine consumption and caffeine use disorder in children.
  • Caffeine intake is prevalent among children and adolescents.
  • Potential impact of caffeine on developing brains is not fully understood.

Purpose of the Study:

  • To investigate the association between caffeine intake and cognitive functioning in children.
  • To determine if caffeine consumption affects various cognitive domains in youth.
  • To provide evidence for potential interventions related to caffeine intake in children.

Main Methods:

  • Utilized data from 11,718 youths aged 9-10 years from the Adolescent Brain Cognitive Development (ABCD) study.
  • Assessed cognitive function using seven NIH Toolbox cognitive instruments measuring vocabulary, reading, memory, and executive functions.
  • Employed multiple regression models to analyze the relationship between caffeine intake and cognitive performance, controlling for covariates.

Main Results:

  • Caffeine intake showed a negative correlation with all seven cognitive measures in children.
  • After adjusting for age, gender, sleep, and socioeconomic status, caffeine intake remained negatively associated with vocabulary, working memory, cognitive flexibility, processing speed, and episodic memory.
  • No significant negative association was found between caffeine intake and reading decoding or inhibitory control.

Conclusions:

  • Frequent consumption of caffeinated beverages may pose a risk to optimal cognitive development in children.
  • Controlling caffeine intake in children could be a strategy to mitigate risks associated with nonoptimal cognitive development.
  • Further research is warranted to understand the long-term effects of caffeine on child cognition.