Neurasthenia

ynu-ras-then-i'-ali. A group of symptoms resulting from debility or exhaustion of the nerve-centers. Among the more common symptoms are a lack of energy, undue readine of fatigue, disinclination to activity, a sense of fulne or pre ure at the top of the head; pain in the back, impaired memory, and disturbed sleep; gastrointestinal symptoms, such as anorexia, constipation, fulne after eating, are common; and amenorrhea and dysmenorrhea in females, and spermatorrhea and impotence in the male, are frequent accompaniments. N., Cerebral, is marked by depre ion, inability to concentrate the mind, insomnia, irritability, headache, visual disturbances, etc. N. gastric a, feeble digestion of a purely nervous origin. N., Spinal, commonly known as spinal irritation, is characterized by pain in the back, tender points along the spine, weakne of the extremities, great prostration on slight exertion, neuralgic pains, and other nervous manifestations.