In general, people are living longer now. Discuss the causes of this phenomenon.

Since the medical science is developing steadily, the human's life is getting longer than the past. In some ways, it is natural phenmenon. It is because the medicine is getting smarter and also many kinds of surgeries are developing. But the most important thing is the quality of life. If I am 90s but my quality of life is really bad, I have no reasons to live such a long. It could be meaningless life. In short, the human's life is naturally longer because of the medical science's development. Also there is a correlation between the life's long and the quality of life.

Lona! Thanks for expressing your opinion. I am glad that you did your homework once again. You have a remarkable idea. Please go over the sentences. See you! ~T. Jessie~ Since the medical science is developing steadily, the human\'s life is getting longer than the past. >> Since medical science is developing steadily, human\'s life is getting longer than the past. In some ways, it is natural phenmenon. >> In some ways, it is a natural phenmenon. It is because the medicine is getting smarter and also many kinds of surgeries are developing. >> It is because medicine is getting smarter and also, many kinds of surgeries are developing. But the most important thing is the quality of life. >> Correct! If I am 90s but my quality of life is really bad, I have no reasons to live such a long. >> If I am in my 90s but the quality of my life is really bad, I have no reasons to live long. It could be meaningless life.>> Correct!In short, the human\'s life is naturally longer because of the medical science\'s development. >> In short,  human\'s life is naturally longer because of medical science\'s development. Also there is a correlation between the life\'s long and the quality of life. >> Also, there is a correlation between  the duration and the quality of life.