名词解释：肥胖症是一种由多种因素引起的慢性代谢性疾病，以体内脂肪细胞的体积和细胞数增加致体脂占体重的百分比异常增高并在某些局部过多沉积脂肪为特点。单纯性肥胖患者全身脂肪分布比较均匀，没有内分泌紊乱现象，也无代谢障碍性疾病，其家族往往有肥胖病史。你知道怎么用英语表达吗?
The obesity is among the most critical health issues facing us at present.
For most people, obesity is usually the consequence of eating too much junk food and consuming portions that are too large.
The food industry has developed tens of thousands of products with more calories per bite, as well as new, effective marketing strategies to encourage us to buy and consume more than necessary.
If we didn't live in a world filled with too many foods with excess fat, salt and sugar, the incidence of obesity, heart disease, high blood pressure and diabetes probably would plummet.
现在，肥胖是我们所面临的最严峻的健康问题之一。
对于大多数人来说，肥胖通常是由于食用过多垃圾食品和饮食过度导致的。
食品工业生产出数以万计的产品，这些产品的单位卡路里含量更高;同时，新型有效的市场营销策略诱使我们购买、消费超出需要的食物。
如果我们没有生活在充斥着含有过量脂肪、盐分和糖的食物的世界里，那么肥胖症、心脏病、高血压和糖尿病的发病率就可能会骤降。
【讲解】
文中的obesity作名词，意思就是“肥胖，过胖”，如：obesity cure(肥胖症治疗);它的形容词是obese(肥胖的)，如：obese figure(肥胖的身躯)。据医学研究，肥胖容易导致的疾病有：心脏病(heart disease)，高血压(high blood pressure)，以及癌症(cancer)，这些疾病都是人类健康的主要杀手。
文中最后一段的plummet，用作动词，意为“暴跌”，如：House prices have plummeted in this area.(此地区房价大跌。)