Question: what are the ailments of nervous system?
Answer: Alzheimer's disease. Alzheimer's disease affects brain function, memory and behaviour. ... 
Bell's palsy. Bell's palsy is a sudden weakness or paralysis of facial muscles on one side of the face. ... 
Cerebral palsy. ... 
Epilepsy. ... 
Motor neurone disease (MND) ... 
Multiple sclerosis (MS) ... 
Neurofibromatosis. ... 
Parkinson's disease.