Cell damage refers to the harm that occurs to cells, which are the basic building blocks of all living organisms. This damage can happen due to various factors, such as exposure to toxins, radiation, or infections. When cells are damaged, they may not function properly, leading to issues in the body, like inflammation or disease. One common cause of cell damage is oxidative stress, which occurs when there are too many free radicals in the body. Free radicals are unstable molecules that can attack and harm cell membranes, DNA, and proteins. If enough cells are damaged, it can contribute to serious health problems, including cancer and neurodegenerative diseases.