A 4-d Water Intake Intervention Increases Hydration and Cognitive Flexibility among Preadolescent Children

Hydration effects on cognition remain understudied in children. This is concerning since a large proportion of US children exhibit insufficient hydration.This study investigated the effects of water intake on urinary markers of hydration and cognition among preadolescents.A 3-intervention crossover design was used among 9- to 11-y-olds [n = 75 (43 males, 32 females); 58.2 ± 28.5 BMI percentile]. Participants maintained their water intake [ad...