Genomic stability refers to the maintenance of the integrity and proper functioning of an organism's DNA. It ensures that genetic information is accurately replicated and passed on during cell division, preventing mutations that could lead to diseases such as cancer. Various cellular mechanisms, including DNA repair systems and cell cycle checkpoints, work together to detect and correct errors in the genetic material. When these systems fail, it can result in genomic instability, which is often associated with aging and the development of various health conditions.