1. When people get old, their physical strength and ability to react decline. These phenomena do not only affect their ability to be productive; they also can increase the chance of being injured while working. This is a down side, especially for the field of manufacturing, which requires workers to have physical strength and endurance. Quick reaction and physical flexibility are also required for police work and firefighting; otherwise, people in these professions will always be in peril while performing their duties in dengerous environments.
2. Because people's stamina starts to decline at the age of 60, and the working situation in modern society is getting more and more intense, retirement is a social right for all people. Abolishing the official retirement age would be a punishment. *There are many benefits to retirement, such as : getting relieved from the causes of nervousness of mind and body, being able to walk away from an unsatisfactory or unhealthy job environment , and reviving the passion for life after decades of hard work.
After read your writing again, I found the sentence in the end of the second line of #2, which I translated as: *There are many benefits to retirement, such as: ....., you seemed trying to say:
Some retirees mentioned the befefits of retirement, such as: ....
If this is what you mean, you may use it.
2009-06-03 10:26:08 補充：
typing error in the notes:
Some retirees mentioned the *benefits of retirement, such as: