Researchers at the University of Illinois have found that drinking water not only keeps children hydrated, but also increases their ability to multitask.
According to Xinhua, researchers studied 75 children in central Illinois, compared the children’s urinary hydration and cognitive performance at their normal baseline levels, after drinking only half a liter of water a day for four days, and after drinking 2.5 liters of water each day for four days.
It turned out that children with higher baseline hydration performed better on a task-switching activity designed to measure cognitive flexibility. In addition, the children collectively performed better and had faster reactions on the task-switching test after drinking more water.
After drinking more water for several days, the children’s hydration improved, as was expected.