Telomeres

http://www.biologynews.net/archives/molecular_cell_biology/

Telomerase is an enzyme that maintains the DNA at the ends of our chromosomes. Are telomeres get shorter everytime our cells divide. This is a natural part of our aging process. Telomeres act as protective caps for the ends of our chromosomes. Eventually they will become so short the cells will die. The cells that contain cancer will die even faster than normal cells.

This is a major problem. I think that scientists should start looking for a cure to this. People with cancer cells are more likely to die a lot faster if the cells die quicker than normal cells. This is because when the telomeres die, a persons body becomes a lot weaker and can not do as many things as it used to be able to do. This needs to be looked further into because people with cancer cells are going to die a lot faster and scientists should try and stop this or at least extend find a way to extend the life span of people with cancer cells.