Here's why:

* Mitosis is the process of cell division that creates two identical daughter cells from a single parent cell. This process is used for growth, development, and repair of tissues.

* Damaged cells are often repaired or replaced by a process called cell cycle regulation. This includes:

* Apoptosis: Programmed cell death, where damaged cells are eliminated in a controlled manner.

* Cell differentiation: Existing cells may differentiate to replace damaged ones, depending on the tissue.

* Stem cell division: Some tissues contain stem cells, which can divide and differentiate to replace damaged cells.

Mitosis is a part of the cell cycle, and it's used to create new cells, but it's not the primary mechanism for repairing damaged cells.