Cuil-Walking is the ability to resist higher Cuil levels then average. It is brought about through two ways:
True Cuil-Walking - A genetic quirk that sprouts from a family lineage in high ECF areas, or through random mutation. Notably, it is capable of being spliced into the body or gene-modded. The current treatments for such are wild, vague, and poorly understood by modern medicine. It can be inherited from one’s family.
Faux Cuil-Walking - A psionic ability that allows one to accomplish the same effect. This is done most often by either an Aberrant ability that lowers the ECF around one, or a biokinetic ability that allows one to recreate the same quirk in their genetics. These are uninheritable, like all psionics, and often done subconsciously.