Radiosensitivity refers to the susceptibility of cells or organisms to damage from exposure to ionizing radiation, such as X-rays or gamma rays. This area of research explores how different cells, tissues, and organisms respond to radiation exposure, including the mechanisms of DNA damage and repair, as well as the factors that influence radiosensitivity, such as genetic predisposition and environmental factors. Understanding radiosensitivity is important for improving cancer treatment strategies, radiation safety protocols, and the development of radioprotective therapies.