1.  And the second reason is it can train our determination when we take a long swimming.

2.  The second reason is the improvement on hospitals.

3.  The second reason is the wars.

4.  The second reason is the help of the govrement and the society, the third is the development of the medacine .

5.  The second reason is the science developing .

6.  The second reason is the development of the education , more and more people know the important of the health and the way how to make halth .

7.  The second reason is that the country's laws confirm many items about protecting people and their right.

8.  The second reason is the people's advantage in developing countries.

9.  The second reason.

10.  The second reason, if you can't find a good job, or you don't like you present job, you should make yourself like it, whatever you do, you should do good to people and yourself .