单选题 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 London, tested the anxiety levels of a group of people following a 1 situation and revealed that even a single cup of tea has a 2 calming effect. His team gave 42 volunteers a mental arithmetic exam and 3 offered half of them a cup of tea and the other half a glass of water. The water group"s anxiety levels soared 4 25 percent compared to before the task, 5 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 6 tea in a dilemma, making it the nation"s most common response to trouble of 7 kind. About 60 percent said the promise of comfort and warmth was the main reason for putting the kettle on. "The 8 of making and drinking tea--particularly during times of stress---is at the very 9 of British culture," Cross said.
This study shows that the social psychological 10 of tea enhance the effects of its chemical make-up on our bodies and brains.