The term ‘functional’ which just means that the body is not functioning quite as it should.
Functional Neurological Disorders (FND's) is the name given for symptoms in the body which appear to be caused by problems in the nervous system but which are not caused by a physical neurological disease or disorder. Health professionals sometimes call these disorders ‘medically unexplained’, psychosomatic or somatisation.
Functional neurology is a treatment discipline for various neurological disorders. Functional neurologists treat brain injury patients, degenerative disorders (such as dementia), movement disorders, vestibular challenges (i.e. balance and dizziness issues), or any other neurological disease or disorder of unknown origin (typically something that traditional doctors have not been able to diagnose and treat successfully).
Functional neurology does not include surgery or pharmaceutical solutions, but may employ some combination of chiropractic manipulation, various therapies, and recommended lifestyle changes.