Stages of Alzheimer's

Overview

Alzheimer's disease progresses through different stages or severity classifications. Here is a breakdown of each stage and its characteristics:

• Preclinical stage: This stage is often overlooked because no severe symptoms are present. However, during this stage, changes begin to occur in the brain. Two areas of the brain affected by these changes are the entorhinal cortex and the hippocampus. People in this stage may experience mild memory loss, but their daily activities are not significantly impaired.
• Mild Alzheimer's disease: In this stage, cognitive symptoms start to appear. The changes in the brain spread to another area called the cerebral cortex. People in this stage of the disease may have difficulty remembering new information, forget things like appointments, and experience problems with problem-solving and judgment. Personality changes, mood swings, confusion, and disorientation are also common.
• Moderate Alzheimer's disease: During this stage, the severity of symptoms increases further. The brain damage spreads to areas responsible for language, reasoning, and sensory processing. Symptoms may include trouble remembering events, difficulty with problem-solving, impulsive behavior, shortened attention span, language difficulties, restlessness, and agitation.
• Severe Alzheimer's disease: In the late stage of Alzheimer's disease, individuals experience a significant decline in cognitive function. They lose the ability to communicate effectively and become completely dependent on others for their care. Common symptoms include an inability to recognize family and friends, increased sleep duration, weight loss, and difficulty swallowing.

Recently, a new earlier stage called the prodromal period or mild cognitive impairment (MCI) has been proposed. MCI is characterized by episodic memory loss, decreased executive abilities, behavior issues such as depression and anxiety, and sleep disturbances.

It is important to note that Alzheimer's disease is progressive and is usually fatal within 5 to 10 years from the onset of symptoms. Talk with a healthcare professional for an accurate diagnosis and appropriate management strategies for Alzheimer's disease.