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Diabetes affects millions of people around the world. You probably know someone with the disease. The condition, when carefully managed - as is usually the case in the UK - has a limited impact. However, if uncontrolled, diabetes can cause blindness, kidney failure, heart disease, and other serious health problems. 全球的糖尿病患者有数百万人。也许你也认识一些糖尿病患者。在仔细照管的情况下（英国就是这么做的），该疾病的影响则会受到控制。然而，如果不加以控制，糖尿病会导致失明、肾功能衰竭、心脏病和其它严重的健康问题。 Before diabetes is diagnosed, there is a period of time called prediabetes. This is when blood sugar levels are high, but not high even to be considered by medical professionals as diabetes. 糖尿病被确诊之前的一段时间被称为前驱糖尿病。也就是血糖水平很高，但却没有高到被医学专业人员视为糖尿病的时候。 | 
