What kind of life does the person with niemann-pick disease have?

Neurological issues. Niemann-pick disease is a lysosomal storage disorder wherein the patient cannot degrade sphingomyelin-one of the major lipids of the nervous system. Thus there is build-up in all the cells of the body but most profoundly affecting the nervous system. It affects the cerebellum that leads to balance problems and speech problems. It can also affect the cortex-leading to seizures and cognitive issues.