Final answer:
Alzheimer's disease is a progressive, neurodegenerative disease that impairs cognitive functioning. It is characterized by memory loss, confusion, difficulty with tasks, and personality changes. The disease is related to the accumulation of beta-amyloid plaques.
Step-by-step explanation:
A progressive, neurodegenerative disease in which patients exhibit an impairment of cognitive functioning is Alzheimer's disease.
Alzheimer's disease is characterized by disruptive memory loss, confusion about time or place, difficulty with planning and executing tasks, poor judgment, and/or personality changes. It is a condition that affects the brain and leads to cognitive decline over time.
Research suggests that Alzheimer's disease is related to the accumulation of beta-amyloid plaques, dense conglomerations of a protein that is not functioning correctly in the brain.