Video - Nervous system: Neurodegenerative diseases

Neurodegenerative diseases are conditions that cause the progressive loss of function in the nervous system, including the brain and spinal cord. These diseases can cause a wide range of symptoms, depending on the specific condition and the areas of the nervous system affected. Some common neurodegenerative diseases include: Parkinson's disease: a brain disorder that causes tremors, stiffness, and difficulty with movement. It results from the loss of certain neurons that produce dopamine. Multiple sclerosis: a disease that affects the protective covering of nerve cells in the brain and spinal cord, causing problems with movement, sensation, and other functions. Amyotrophic lateral sclerosis (ALS): a progressive neurodegenerative disease that affects the nerve cells responsible for controlling muscle movement, leading to muscle weakness and wasting. Huntington disease: an inherited neurodegenerative disease that causes the progressive loss of brain cells, leading to changes in movement, cognition, and behavior.