Drink water before exam, improve your grades


London: Drinking a glass of water could help you do better in exams, researchers have suggested.

    A new study found that students who took a drink, such as water, coffee or cola, before taking an exam did up to 10% better than those who did not the difference between a grade.

    It is unclear why a drink should help, but one theory suggests that information flows more freely between brain cells when they are well hydrated. Drinking water may also calm nerves, while those who became thirsty during the test could be more easily distracted, the Daily Mail reported.