Which disease is noted as the 8th leading cause of death in the United States and has no known cure?

• A. Stroke
• B. Parkinson's Disease
• C. Alzheimer's Disease
• D. Chronic Obstructive Pulmonary Disease

Answer: (C)

Alzheimer's disease is a progressive brain disorder that leads to memory loss and a decline in thinking and daily functioning. There is no cure currently, and treatments mainly address symptoms or slightly slow progression rather than stopping the disease. Because it advances over time and increases vulnerability to complications like infections or malnutrition, it contributes significantly to mortality. In the United States, Alzheimer's has been listed among the top causes of death for many years and is often cited around the eighth position. The other options are serious illnesses, but their typical mortality ranking or the availability of interventions differs from this pattern, making Alzheimer's the best match for this description.