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  3. Many doctors know the story of ’ Mr Wright’. In 1957 he was diagnosed with cancer, and given only days to live. He had tumours t

Many doctors know the story of ’ Mr Wright’. In 1957 he was diagnosed with cancer, and given only days to live. He had tumours t

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问题     Many doctors know the story of ’ Mr Wright’. In 1957 he was diagnosed with cancer, and given only days to live. He had tumours the size of oranges. He heard that scientists had discovered a new medication, Krebiozen, which was effective against cancer, and he begged his doctor to give him the drug. His physician, Dr Philip West, finally agreed. Mr Wright was given an injection on a Friday afternoon, the astonished doctor found his patient out of his ‘death bed’ , joking with the nurses the following Monday. ’The tumours, ‘the doctor wrote later, ’ had melted like snow balls on a hot stove. ’ Actually, Mr Wright had not been given a drug, just a mix of salt and water.

    This story has been ignored by doctors for a long time, dismissed as one of those strange tales that medicine cannot explain. The idea that what a patient believes can make a fatal disease go a-way is regarded as just too strange. However, now scientists are discovering that placebo effect is more powerful than anyone had ever thought. They are also beginning to discover how such miraculous results are achieved.【44】Through new techniques in brain imagery it has been shown that a thought, a belief or a desire can cause chemical processes in the brain which can have powerful effects on the body.
    Placebos are ’ lies that heal’ , said Dr Anne Harrington, a science historian at Harvard University. ’ The word placebo is Latin for "I shall please" or "I shall, make you happy" and it is typically a treatment that a doctor gives to anxious patients to please them, ’she said. ’ It looks like medication, but has no healing ingredients whatsoever. ’ Nowadays, doctors have much more effective medicines to fight disease, but these treatments have not diminished the power of the placebo— quite the opposite.【45】Maybe when scientists fully understand how they work, the powerful heating effects of the human mind will be used more systematically.
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答案大脑影像的新技术表明，人的想法、信仰、欲望等可以引起大脑内部的化学变化，此变化可以对人体有强大的影响。
解析 (brain imagery大脑影像。)
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