Remember you may be taken to court for not doing so, and you may be fined if you cannot prove to the court that you have been excused from wearing it.

译文：

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。

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.

译文：

Taiju Matsuzawa教授想找出为什么日本北部的健康农民在相对年轻的年龄就显得开始失去思考与推理的能力的原因以及怎样才能延缓老化过程。

With a team of colleagues at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations.

译文：

在东京国立大学的同事们的帮助下，他开始对一千来自不同职业的人群进行了大脑体积的测量。

Computer technology enabled the researchers to obtain precise measurements of the volume of the front and side sections of the brain, which relate to intellect(智能)and emotion, and determine the human character.

译文：

计算机技术帮助研究人员获得人脑前部和侧部的准确体积，这是与人的智能和情绪有关的部分，而且也决定人的性格特点。

Contraction of front and side parts as cells die off was observed in some subjects in their thirties, but it was still not evident in some sixty and seventy-year-olds.

译文：

有的人(大脑)前部和侧部的收缩——随着细胞的死亡——在三十多岁时就能被观察到了，但是也有些人直到六七岁依然不明显。