First of all, even though lifespan can be prolonged by biotechnology and advanced medical methods, technology can never keep people young and energetic. There is an ancient saying in China: Life’s width is more significant than its length. High-tech cannot make lives more colorful and meaningful. We can image that, in the future, human will have to stay in a hospital and eat so much medicine everyday just in order to live longer, which make people lost the joy of being a person. We don’t need longer and boring lives in a hospital. Therefore, it is unnecessary to make people have a longer life span by using biotechnology or medicine.
Secondly, new technology not only elongate lifespan, it also brings new diseases and problems. In the one hand, biotechnology prevents people form suffering viruses attacking, but, meanwhile, the viruses also update following the biotechnology. Before the invention of antibiotics, human couldn't overcome the sepsis and the flu that killed so many people in the past. As people use antibiotics excessively nowadays, there are many new drug-resistance viruses being generated, such as the SARS and the Ebola virus. Therefore, biotechnology should be treated seriously. On the other hand, biotechnology is uncontrollable. Although genetic technology can help people survive from cancers and AIDS, doctors don’t make sure that the genetic technology never brings other changes in our body. That is the reason why people prefer to buy organic vegetables