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It is also a cognitive no-no. The department's very own Peter Rogers and his minions have written a paper on this (Appetite, 2001, 36, 57-8). They say, "Many students take a drink into a long exam. If you are not thirsty and use the water as a distraction or comfort tool it may have a detrimental effect on your performance."(source).
They found 15% lower scores (than controls) in people taking a test where water was sipped continuously. They also found 10% higher scores where water was consumed and people were thirsty, hence why I say hydrate before the exam.
They found 15% lower scores (than controls) in people taking a test where water was sipped continuously. They also found 10% higher scores where water was consumed and people were thirsty, hence why I say hydrate before the exam.
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