Neurodegenerative diseases consist of a wide range of disorders characterized by nerve cell progressive degeneration or death. It affects the nervous tissue and also causes various neuropsychological effects. This is a term for a variety of conditions that affect neurons in the human brain in particular.
The development of neurodegenerative diseases has demonstrated that genetic and environmental factors play an important role. Age is one of the main risk factors common to all types of neurodegenerative disease as it commonly progresses in older age.