Should children drink more water?: the effects of drinking water on cognition in children

Area of Science:

• Pediatric Health
• Cognitive Neuroscience
• Human Hydration Studies

Background:

• Dehydration negatively impacts adult cognitive function.
• Limited research exists on hydration's effects on children's cognition.
• Understanding hydration's role in pediatric cognitive performance is crucial.

Purpose of the Study:

• To investigate if providing water enhances cognitive task performance in children.
• To assess the impact of additional water intake on thirst levels in children.
• To explore the relationship between hydration and specific cognitive functions in the pediatric population.

Main Methods:

• Fifty-eight children aged 7-9 years were randomly assigned to either an intervention group (additional water) or a control group.
• Cognitive tasks, including visual attention (letter cancellation) and memory (spot the difference), were administered.
• Thirst levels were self-reported by participants.

Main Results:

• Children receiving additional water reported significantly lower thirst levels compared to the control group (p=0.002).
• The water intervention group demonstrated improved performance on visual attention tasks (p=0.02).
• Enhanced performance was also observed in memory tasks for the group that received extra water (ps=0.019 and 0.014).

Conclusions:

• Adequate hydration, through the provision of water, can positively influence cognitive functions in children.
• Hydration appears to be a significant factor in maintaining optimal attention and memory capabilities in young children.
• These findings suggest that ensuring children are well-hydrated may support their academic and cognitive development.