Final answer:
The 4th stage of moderate cognitive decline, or early-stage Alzheimer's disease, is marked by disruptive memory loss, confusion, poor judgment, and changes to personality and movement. This stage is part of the progression of Alzheimer's disease, a type of dementia characterized by memory problems, thinking disruption and behavioral issues.
Step-by-step explanation:
The 4th stage of moderate cognitive decline, also referred to as early-stage Alzheimer's disease, is marked by increasingly noticeable symptoms that can significantly disrupt daily life. These symptoms include disruptive memory loss, confusion about time or place, difficulty with planning and executing tasks, poor judgment, and personality changes. Slowed movements, balance and posture problems, speech changes or diseases such as dementia can also occur in this stage.
This stage of Alzheimer's disease is characterized by an increase in cognitive disruptions, which leads to the more severe symptoms of Alzheimer's, including an overall shrinking of brain volume and severe loss of neurons in the hippocampus. The presence of amyloid plaques and tangled brain fibers, referred to as neurofibrillary tangles, are common in the brains of Alzheimer's patients.
Alzheimer's disease, named after German psychiatrist Alois Alzheimer, is a type of dementia that causes problems with memory, thinking and behavior. Symptoms usually develop slowly and worsen over time, becoming severe enough to interfere with daily tasks.
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