How many stages are there in the progression of Alzheimer disease?

Alzheimer's disease is typically understood through various staging systems that describe its progression. The most widely used model categorizes the disease into seven stages, which provides a framework for assessing the decline in cognitive function and daily living abilities.

These stages range from very mild cognitive impairment, where individuals may experience some memory lapses but function generally well in daily life, to severe Alzheimer's disease, where individuals may lose the ability to communicate and require full assistance in daily activities. This staging allows caregivers and healthcare professionals to identify appropriate interventions and support for both patients and families based on the specific stage of the disease.

While other staging systems may exist, the seven-stage model is particularly recognized for its thoroughness and utility in clinical practice and patient care, which is why this answer is considered correct in identifying the number of stages in the progression of Alzheimer’s disease.