Cellular repair mechanisms are processes that help cells fix damage caused by various factors, such as UV radiation, toxins, or oxidative stress. These mechanisms include DNA repair, where cells identify and correct errors in their genetic material, and protein repair, which helps maintain the function of proteins that may have been damaged. Another important aspect of cellular repair is autophagy, a process where cells remove damaged components and recycle them for energy or building blocks. These mechanisms are essential for maintaining cellular health and preventing diseases, including cancer and neurodegenerative disorders.