neurasthenia

(nu-ras-the'nl-ah, nu-ras-th6-ne'ah) [G. neuron, nerve, + astheneia, weakne .] Nervous exhaustion. Beard's disease, a functional neurosis marked by intense nervous irritability and weakne ; the chief symptoms are insomnia, headache, or feelings of constriction about the head, pain in the back, exhaustion after slight mental or physical exertion, exce ive sensibility to noises, irregular heart action, vertigo, dyspepsia, disorders of vision, and lo of memory. acous'tic n., n. in which deafne is a prominent symptom, acquired' n., nervous exhaustion appearing in adult life, due to overwork and worry, mental shock, exce es of various sorts, syphilis, chronic poisoning, eyestrain, etc. angiopaialyt'ic n., angiopath'ic n., a form of mild n. in which the chief complaint is of a universal throbbing or sense of pulsation throughout the body, cer'ebral n., n. in which headache and mental weakne or irritability are prominent symptoms, gas'tric n., a condition marked by gastric atony and distention, dyspepsia, and mild neurasthenic symptoms, n. gra'vis, a condition of extreme and lasting n. n.prse'cox, primary n., a form of nervous exhaustion appearing in the adolescent period, obses's ive u., psychasthenia. optic n., a form in which visual disturbances, especially a narrowing of the visual field, are prominent symptoms, ppl's ating n., an gio pathic n. sez'ual n., a, form in which sexual erethism, weakne , or perversion is a marked symptom, spinal n., the common form of n. in which symptoms referable to the spinal cord are marked, traumat'ic n., nervous exhaustion following an injury, especially if accompanied by fright see railway-spine.