Biological Effects of Radiation

Radiation interacts with living tissue through three possible cellular responses: self-repair returning cells to normal, misrepair leading to cancer development, or excessive damage causing cell death; the health effects depend on dose amount, delivery rate (prolonged exposure is less severe than acute), body region affected (partial-body exposure is less severe than whole-body), and individual sensitivity (children and young adults face higher risks due to rapid cell division and longer lifespans allowing cancer development); low doses may cause no immediate effects while high doses require medical monitoring and screening.