Each time a cell divides, the telomeres, small pieces of DNA on the tips of chromosomes, shorten. An enzyme called telomerase can rebuild the telomeres, and allow the cell to divide more. In addition, biologists at the Geron corporation and Drs. Shay and Wright at the University of Texas, restored telomeres in two human cells, and the cells doubled 40 times more. Therefore, as more and more types of human cells are being tested, the possibility of extending human life is becoming greater.
Some people are in favor of an extended life span.
To live for 200 more years than expected seems inviting because it s delaying the inevitable and more time can be spent with others. Nevertheless, this new information should not be used to extend people's lives and create chaos, but rather only to act as cures for various diseases. If the aging process in humans is slowed, and people lived longer, there would be many problems. For instance, overpopulation would result, and there would be shortages of food and other necessities of life. Economically, the world would suffer because there would be such a large work force and not enough jobs, making it difficult to support oneself monetarily for so many years.