Your cells, each time they reproduce, have checkpoints, making sure they reproduced correctly. If they don’t, they kill themselves, protecting the body from making more of those cells. Cancer is when the cell skips the checkpoint, causing unregulated cell growth. Chemotherapy and radiation treatment is like a nuclear bomb. You get rid of the cancer, but you also get rid of all the other cells in the area, so it’s extremely hard to get rid of.
Latest Answers