The transformation into a ghoul within the Fallout universe is primarily the result of prolonged exposure to extreme levels of radiation. This radiation, often stemming from nuclear detonations or contaminated environments, alters the biological structure of humans, leading to significant physical and physiological changes. This exposure doesn’t guarantee ghoulification; many individuals succumb to radiation poisoning and death instead. The process is seemingly influenced by pre-existing genetic factors or perhaps even specific environmental conditions during exposure.
Understanding the ghoulification process is crucial for comprehending the post-apocalyptic world of Fallout. Ghouls, despite their often-decomposed appearance and social stigmas, frequently exhibit remarkable resilience to radiation and extended lifespans. Some even retain their intellect and personality, becoming valuable sources of knowledge and skills in the harsh wasteland. Historical precedents from pre-war research into radiation resistance possibly played a role in understanding or even inadvertently causing some instances of the phenomenon.
