Alzheimer’s disease: A progressive brain disorder that affects memory, thinking, and behavior. It is the most common cause of dementia.

Parkinson’s disease: A chronic and progressive movement disorder characterized by tremors, stiffness, and impaired balance and coordination.

Multiple sclerosis (MS): An autoimmune disease in which the immune system attacks the protective covering of nerve fibers, resulting in communication problems between the brain and the rest of the body.

Epilepsy: A neurological disorder characterized by recurrent seizures, which are caused by abnormal electrical activity in the brain.

Stroke: A sudden interruption of blood flow to the brain, leading to damage to brain cells. Strokes can cause various symptoms depending on the area of the brain affected.

Migraine: A type of headache disorder characterized by recurrent and severe headaches often accompanied by other symptoms such as nausea, vomiting, and sensitivity to light and sound.

Amyotrophic lateral sclerosis (ALS): Also known as Lou Gehrig’s disease, ALS is a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord, leading to muscle weakness, paralysis, and eventual respiratory failure.

Huntington’s disease: A genetic disorder that causes the progressive breakdown of nerve cells in the brain, leading to movement problems, cognitive decline, and psychiatric symptoms.

Neuropathy: Refers to damage or dysfunction of the peripheral nerves, leading to symptoms such as numbness, tingling, weakness, and pain in the affected areas.

Traumatic brain injury (TBI): Brain damage caused by a sudden impact or violent shaking of the head. TBIs can lead to a wide range of symptoms, depending on the severity and location of the injury.