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Researchers produced evidence to support what most of us already knew—that a cup of tea is the answer to any crisis. Dr. Malcolm Cross, a psychologist at City University of London, tested the anxiety levels of a group of people following a【C1】______situation and revealed that even a single cup of tea has a【C2】______calming effect. His team gave 42 volunteers a mental arithmetic exam and【C3】______offered half of them a cup of tea and the other half a glass of water. The water group's anxiety levels soared【C4】______25 percent compared to before the task,【C5】______the tea group actually reported a four percent reduction in anxiety—despite the difficult test, they were more relaxed than when they started. According to a survey carried out for the research, 68 percent of Britons【C6】______tea in a dilemma, making it the nation's most common response to trouble of【C7】______kind. About 60 percent said the promise of comfort and warmth was the main reason for putting the kettle on. "The【C8】______of making and drinking tea—particularly during times of stress—is at the very【C9】______of British culture," Cross said. This study shows that the social psychological【C10】______of tea enhance the effects of its chemical make-up on our bodies and brains.