超重或肥胖症系指人体体重指数(BMI)等于或大于25.00,而BMI是以体重(kg)/身高~2(m)~2来计算的。正常体重指数为18.50～24.99。 肥胖症的健康后果是多种多样的,它成为增加过早死亡的危险因素,同时也能引起非致命的,但是虚弱的病痛,这些都对人的生活质量产生有害的影响。肥胖症同时也是非传染性慢性疾病,如非胰岛素依赖性糖尿病、心血管疾病和癌症的主要危险因素。在许多工业化工国家肥胖症也造成诸多社会心理问题。 Overweight or obesity means the body mass index (BMI) is equal to or greater than 25.00 and BMI is calculated as body weight (kg) / height ~ 2 (m) ~ 2. The normal body mass index is 18.50 ~ 24.99. The health consequences of obesity are manifold, as a risk factor for premature death, and at the same time can cause non-fatal, but debilitating, painful detrimental effects on the quality of life of people. Obesity is also a major risk factor for noncommunicable chronic diseases such as non-insulin-dependent diabetes, cardiovascular disease and cancer. Obesity also causes many psychosocial problems in many industrialized countries.