FKBP5 and Seizure: Functional seizures (psychogenic nonepileptic seizures/attacks) and other stress‐associated neuropsychological disorders share a common core of clinical characteristics; therefore, it is reasonable to investigate whether variants in stress‐related genes (e.g., GR gene, FKBP5) also contribute to the development of various FNDs, including functional seizures (psychogenic nonepileptic seizures/attacks).