Gamma radiation is a type of high-energy electromagnetic radiation emitted by radioactive materials. It is one of the most penetrating forms of radiation, capable of passing through most materials, including human tissue. This makes it both useful in medical applications, such as cancer treatment, and hazardous in terms of exposure. Gamma rays are produced during nuclear reactions and decay processes, often accompanying alpha and beta radiation. Due to their high energy, they can cause significant damage to living cells, which is why safety measures are crucial when working with radioactive substances. Understanding gamma radiation is essential for both scientific research and public health.