关于健康水平下降原因的雅思范文，很多同学对于这个问题有疑问和不解，那么下面就跟着的小编详细了解一下吧。

　　As some people in poor countries are vastly underweight as aresult of poverty, others elsewhere in the world are suffering fromanother problem-obesity, as a consequence of improved livingconditions. A recent study has shown the latter problem is becomingan epidemic, as the number of obese people keeps rising alarmingly. Ibelieve there are several factors responsible for this increase.