2、亚健康的具体表现及在我国的蔓延程度(据调查，北京75%、上海72%、广州70%的上班族都处于亚健康状态)
参考范文：
With the modernization of the world, people’s standard of living has improved a lot. Then there appears a state of sub-health among people which poses a new threat to them.
There are some tpical symptoms for people who are in a state of sub-health. First of all, those who suffer from it often have a headache or backache. Secondly, they feel like having a rest frequently. What upsets us most is that, the situation spreading countrywide. As a result, more and more workers in big cities are harassed by it, with a percentage of 75 in Beijing, 72 in Shanghai and 70 in Guangzhou respectively.
Then how can we sovle this problem effectibely? Experts suggest that the best way to keep ourselves thealthy is to do exercises. It is also very important that people should form a good living habit, for example, getting up early and going to sleep early. Only doing so can we keep us healthy.
