Atomic!

Atomic! is a perk in the Fallout: New Vegas add-on Old World Blues.

Effects
When in irradiated zones, run speed is multiplied by 1.25, which is good for getting out of hot zones quickly. Additionally, both Strength and Damage Threshold are raised by 2 while in the radiation.

While irradiated, Action Points regenerate faster depending on the extent of your radiation exposure. If irradiated with 200-400 rads, AP regeneration is x1.1; 400-600, AP regeneration is x1.2; 600-800, AP regeneration is x1.33; and 800-999, AP regeneration is x1.5