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A NEW REPORT, examining mortality statistics for almost three million people, has determined that people who would officially be deemed ‘overweight’ by modern classification live slightly longer than those whose weights are considered ‘healthy’. 最新消息，专家对3万人的死亡数据做评估，得出结论，微胖的人比正常体重的人的寿命更长一点。 The report from academics at the US National Center for Health Statistics found that those which would be statistically classified as overweight are 6 per cent less likely to die prematurely than those who are of ‘normal’ weight. 这份报告出自美国国家健康统计中心，报告指出，微胖的人早亡的几率比正常体重的人早亡的几率要小百分之六。 The Body Mass Index (BMI) is calculated by converting a person’s weight into kilograms, and dividing it by their height in metres. The resulting number is then divided by the height in metres again to give the BMI. 身体质量指数的计算方式是体重（公斤）除以身高（米），得出的结果再除以身高（米）就得到身体质量指数的数值。 A BMI of between 18.5 and 24.9 is considered ‘normal’, while an index of between 25 and 29.9 is classified as ‘overweight’. An index of 30 or over is statistically determined to indicate obesity. The study’s authors have stressed that their findings should not be interpreted as a warning against pursuing a New Year’s any health regime – but merely want to indicate that the Body Mass Index is an imperfect way of measuring someone’s health, relative to their weight, or their mortality. | 
