Neurological disorders can have both organic and functional characteristics, affecting the central nervous system (CNS - brain and spinal cord) and peripheral nerves. Organic CNS disorders are caused by Alzheimer's disease, Parkinson's disease, strokes, traumatic brain injuries, neuroinfections, and metabolic disorders.
These diseases often present with cognitive impairments such as disturbances in thinking and memory, as well as loss of everyday and professional skills. Addressing cognitive impairments may require significant time and effort. Functional impairments (such as migraines, neuroses, and neurosis-like disorders) tend to have a prolonged course but respond well to treatment.
Disorders of the peripheral nerves can be inflammatory (neuritis, radiculitis, sciatic nerve compression) or non-inflammatory (neuropathies). They manifest as pain (neuralgia), sensory disturbances, and movement disorders.