Gamma rays are dangerous because they cause cellular damage that leads to DNA damage, cancer and radiation sickness. Because gamma rays are such a high-intensity, ionizing form of radiation, they pass through normal protections, such as skin, clothing, foil and goggles. read more
Gamma ray s or gamma radiation is dangerous because it is ionizing radiation. That is, it is powerful enough to knock electrons from atoms to create ions. In a cell in your body, for example, those ions disrupt the cell metabolism which in turn may cause a number of things to happen. read more