Uống nước có thể làm dịu sự căng thẳng thần kinh
Cập nhật: 10:21 06/05/2012 GMT+7
Nghiên cứu mới cho thấy, uống một ly nước trước khi bước vào phòng thi có thể giúp cải thiện điểm số của thí sinh, với kết quả cao hơn 10% so với nhóm không uống nước.
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