The character has a hidden radiation ("Rad") count that can be checked with a Geiger counter. This rad count causes the effect "radiated" to appear. As the Geiger count increases, further radiation poisoning occurs. Merely being "radiated" incurs no penalty. If the rad count gets high enough, however, SPECIAL stats begin to drop, and if any of these drop to zero due to poisoning, the character dies. Also, should the character survive to maximum irradiation (1000 rads) (as in their stats do not reach zero), the character has 24 hours to use enough RadAways to get themselves below 1000 rads or die anyway.