In this very brief communication, Leuba notes that aggressive and erotic impulses were related to instances of frequent stumbling or falling in some of his women patients. He was able to conclude that a woman whose personality did not 'hold together' must often fall and this was verified by the student through whom he was observing the case. In the absence of neurological disorder, stumbling and falling is, then, as Leuba explains it, a somatic expression of a weak ego further weakened by anxiety to a point where, as in falling, it momentarily vanishes altogether—the cataplexy of neurology.