Neurodegenerative disorders is characterised with the progressive loss of nerve cells and synapses leading to the degeneration of the nerve cells. This leads to several complications in the functioning of the nerve cells resulting in several disorders. This is most commonly seen in the aged people. Dementia can be defined as a brain or neuro disorder that is associated with the decline in memory or other thinking skills. The most common type of dementia is Alzheimer's disease, vascular dementia, Lewy body dementia, and front temporal dementia. More than one type of dementia may exist in the same person. There is no cure for dementia. It is more common with the age.