Professor taiju matsuzawa wanted to find out why otherwise healthy farmers in northern japan appeared to be losing their ability to think and reason at a relatively early age ， and how the process of ageing could he slowed down 注意你如果不这么做（系安全带）的话，你有可能被告上法庭，而且你有可能被处以罚款除非你能证明你有不带安全带的理由。
However , you do not have to wear a seat belt if you are reversing your vehicle ; or you are making a local delivery or collection using a special vehicle ; or if you have a valid medical certificate which excuses you from wearing it 当然，如果有以下情况你可以不系安全带：你在倒车时，或者你用一种特殊交通工具进行当地的货物运送、收集时，或者你有合法的医学证明你不能系安全带时。
The paper analyzed and discussed the distinct problem existing in the simulation , and points out that for the further research the attention should be pay to the analysis of the conditions such as different occupant size , different crash intensity and whether or not wearing seat belt and so on 论文针对仿真模拟中所存在的突出问题进行了分析和探讨，并指出进一步的气囊匹配研究应针对不同乘员类型、不同碰撞强度以及是否系安全带等情况进行分析。
