Neurons are the building pieces of the sensory system which incorporates the cerebrum and spinal string. Neurons typically don't imitate or supplant themselves, so when they get to be distinctly harmed or bite the dust they can't be supplanted by the body. Many neuro degenerative ailments, including amyotrophic parallel sclerosis, Alzheimer's, Parkinson's and Huntington's happen as an aftereffect of neurodegenerative procedures. Dementias are in charge of the best weight of sickness with Alzheimer's speaking to around 60-70% of cases. The major cause of neural disorder is the progressive degeneration in structure and function of neuron. Sometimes it also causes the death of the neurons. Neural degeneration causes many neurological diseases such as Parkinson’s, ALS, Huntington’s etc. Many researches are going on but till date these diseases are incurable and progressively results in degeneration or death of nerve cells. This deterioration causes the loss of cognitive behaviour and other clinical features.