Radiated (Fallout: New Vegas)

Radiated is a condition

Gameplay
Eating and drinking most food items or entering an irradiated zone gives rads. SPECIAL attributes drop at certain thresholds, and radiation poisoning kills at 1000 rads. Radiation does not directly affect hit points, through penalties affecting Endurance, Maximum Health may be lowered.

There are five major ticks (200, 400, 600, 800, and 1000 rads), with minor ticks at multiples of 66.67, e.g., 67, 133, 200, 267, 333, 400, etc. The rad status can also be checked in the Pip-Boy to see Rad Resistance and rad level. There is also a dial in the upper-left of the Pip-Boy that shows the approximate radiation level.

Removing

 * Using RadAway.
 * Seeing a doctor.
 * Consuming cave fungus.
 * Using the Auto-Doc in Big MT's the Sink.
 * The Irradiated Beauty perk removes rads while sleeping.
 * Consuming fiery purgative.