véragy

Véragy is a neologistic term used primarily in Hungarian-language contexts to refer to imagined or speculative interactions between the blood and the brain. The word blends vér (blood) and agy (brain). It is not established in mainstream medical literature as a defined disease, process, or scientific field.

In real-world science, the analogous topics are encompassed by the blood-brain barrier, neurovascular biology, and neuroimmunology. These areas study how blood components, signaling molecules, and immune cells influence brain function and pathology; they do not employ a single overarching term véragy.

Véragy appears most often in science fiction, speculative essays, or fan glossaries and is sometimes used to describe fictional mechanisms by which blood-borne factors alter cognition, perception, or neural interfaces, or as a metaphor for the link between hematologic and neurological health.

See also: blood-brain barrier; neurovascular unit; hematology; neurology; brain-computer interfaces; science fiction terminology.