The Stages of Alzheimer’s Disease

Alzheimer’s disease is commonly described in three stages- early, middle, and late. The symptoms vary depending on the stage, and not everyone experiences the same symptoms or progresses through the stages in the same way. Each stage includes a range of possible characteristics.

The Stages of Alzheimer’s and How to Handle Them

Normal Thinking – No Symptoms:

The term “Normal Thinking” is used to describe individuals who do not have Alzheimer’s disease or another form of dementia. These individuals are capable of living independently and managing their own care. It is normal for people to forget things occasionally and then recall them later, as this is a natural part of aging. Similarly, changes in physical abilities are also a normal aspect of getting older. In general, someone with normal thinking does not exhibit consistent signs or symptoms of dementia. It is important to note that Alzheimer’s disease is not a typical part of the aging process, and unlike the Stages of Alzheimer’s, which represent a gradual decline in cognitive function, normal aging does not lead to such significant memory loss or impairment.

Early Stage – Mild Symptoms

People in the early stage of Alzheimer can usually live independently and handle most daily activities. However, in the beginning stages of Alzheimer, they may need help to stay safe and maintain independence. They might struggle with remembering names, finding words, managing money, paying bills, and learning new things. Offering support can assist them in completing tasks, maintaining routines, and staying organized.

In the early stage of Alzheimer’s disease symptoms are mild. The key for you is to provide support in the person’s daily routine. Written notes can be useful.

Middle Stage – moderate symptoms

The middle stage of Alzheimer’s is the longest Alzheimer stage, often lasting for several years and requiring more care as it progresses. It often becomes unsafe for the person to drive. Behavioral and communication changes occur, with difficulty expressing needs, emotions, and completing complex tasks. Confusion about time and place becomes more frequent during this stage.

During the middle stage, it’s important to be patient as the person’s thinking changes. They may mix up identities, repeat stories, struggle with tasks, or need help choosing clothing. Behavioral changes, like fidgeting or kicking, may occur. They might nap often, wake up at night, or have trouble with bladder control.

Late Stage – Severe symptoms

In the late stage of Alzheimer’s disease, most individuals require full-time, around-the-clock assistance with daily personal care. Their physical abilities decline significantly, including walking, sitting, and eventually swallowing. At this stage, they are unable to understand goals, maintain focus, or complete tasks involving multiple steps on their own. Nonverbal communication becomes particularly important during this time.

In the late stage of Alzheimer’s, symptoms are severe. It’s important to reduce chaos by being mindful of noise and activity levels. Even if the person no longer understands words, they will still respond to your tone and body language. Ensure they feel safe and comfortable. You may notice that the person:

• Does not recognize themselves or close family

• Refuses to eat, chokes, or forgets to swallow

• Loses control of bowel and bladder

• Appears uncomfortable or cries out when moved or touched

• Sleeps more

• Needs full assistance with daily activities

Tests and Evaluations for Dementia

There are many medical tests to see if you have conditions like strep throat or the flu. Similarly, there are also many tests to help diagnose dementia. These tests include:

Cognitive Tests: These tests evaluate things like memory, language, special skills, and math skills.

Laboratory Tests: These tests evaluate things like blood levels, vitamin levels, and hormones.

Brain Scans: These tests evaluate things like previous strokes, tumors, and brain activity.

Psychiatric Tests: These tests evaluate things like depression or serious mental illnesses.

Genetic Tests: These tests evaluate whether a person is at risk for dementia because of family history.

The most common form of dementia is Alzheimer’s disease. But, a full medical and cognitive evaluation can help rule out other forms of dementia, conditions, and factors.

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Alzheimer’s Disease and Types of Dementia

Dementia encompasses over 200 conditions characterized by cognitive decline, with Alzheimer’s disease accounting for 60-80% of cases. Together, Alzheimer’s and related progressive dementias are referred to as ADRD (Alzheimer’s Disease and Related Dementias).

Common Types of Dementia

1. Vascular Dementia: Often follows a stroke, causing reduced blood flow to the brain, affecting memory and thinking.

2. Parkinson’s Disease Dementia: Affects 50-80% of Parkinson’s patients, causing memory loss, hallucinations, and muffled speech.

2. Normal Pressure Hydrocephalus: Excess cerebrospinal fluid in the brain, leading to walking difficulties and cognitive challenges.

4. Creutzfeldt-Jakob Disease: A rare, rapidly progressing condition causing confusion, mood changes, and difficulty walking.

5. Dementia with Lewy Bodies (DLB): Abnormal protein deposits in nerve cells causing memory loss, hallucinations, and sleep issues.

6. Frontotemporal Dementia (FTD): Impacts those in their 50s-60s, causing personality changes, memory loss, and language difficulties.

7. Huntington’s Disease: Inherited, progressive decline in thinking skills and physical control.

8. Mixed Dementia: A combination of types, often Alzheimer’s and vascular dementia.

Why It Matters

Understanding dementia types helps tailor care and improve quality of life. Early diagnosis supports better symptom management and provides clarity for families and caregivers. By learning about dementia’s many forms, we can better address its challenges and provide compassionate support.

Cognitive Impairment and Mild Cognitive Impairment

Did you know that some states use the term “Cognitive Impairment” (CI) as a general term for Alzheimer’s disease and related dementias? Cognitive impairment is defined as “confusion or memory loss that is happening more often or is getting worse during the past 12 months.”

It’s important to note that Cognitive Impairment (CI) is not the same as Mild Cognitive Impairment (MCI). While CI can encompass a range of conditions, including Alzheimer’s disease and other forms of dementia, MCI is not a type of dementia.

Instead, MCI is a condition that causes changes in thinking that are noticeable but not severe enough to interfere with daily life. Recognizing the distinction between these terms is essential for understanding the spectrum of cognitive changes and seeking the appropriate care or intervention.

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