论文部分内容阅读
人类一直想方设法永葆青春。然而,尽管取得了医学的巨大进展和饮食的显著改进,人的寿命目前只能达到70岁左右。大部分专家认为人的寿命至多为120岁。因此科学家并不徒劳于延长自然寿命,而致力于改善生命质量,控制衰老和防止老年性疾病。一项新的鼓舞人心的发现是,蚯蚓某一基因的突变可使其寿命延长60％。美国基因学者希望能发现同样的人体基因。但其它学者认为人体只是由某一基因控制的设想过于简单。事实上,人体是处于生命基因,而不是死亡基因的
Mankind has always been trying to stay young forever. However, despite significant advances in medicine and dramatic improvements in diet, the lifespan of people is currently only around 70 years of age. Most experts believe that people’s lives are at most 120 years old. Therefore, scientists are not alone in extending their natural lifespan, but are committed to improving the quality of life, controlling aging and preventing senile diseases. A new encouraging finding is that mutations in one of the earthworms result in a 60% longer lifespan. American geneticists hope to find the same human gene. But other scholars think the assumption that the human body is controlled by a single gene is too simple. In fact, the human body is living genes, not death genes