Functional neurological disorder (FND) is a condition in which the nervous system does not function correctly, causing symptoms, but in the absence of any diagnosed disease or event, such as stroke.
It is a problem with the way the brain sends and receives signals to the body. Also known as conversion disorder, it can cause a wide variety of symptoms that may cause distress and impede normal life function.
It is a common diagnosis by neurologists, according to the Royal College of Physicians. As Dr. Lenny Cohen described, “FND is a condition when one has symptoms yet does not have any organic brain disease to cause such symptoms.
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