What Are The 7 Stages Of Alzheimer’s Disease?

Referred to as “the long good-bye,” Alzheimer’s is one of the most feared diseases, and rightly so. It cruelly robs its victims of their mind and memories. It’s grossly misunderstood, costing millions of dollars each year in medical costs, lost wages and long-term care costs. What are the 7 stages of Alzheimer’s Disease?

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What Is Alzheimer’s Disease?

Alzheimer’s disease (AD) is a neurodegenerative disease, and the most common type of dementia and premature senility. This progressive mental deterioration, occurs in middle or old age, and results in degeneration of the brain. Early onset Alzheimer’s, typically presents in those under 65 years of age, with symptoms manifesting as early as age 30 or 40. Fortunately, this group comprises only about 5% of those suffering from AD.

In the United States, Alzheimers accounts for up to 60-80% of all cases of dementia, and is characterized by the accumulation of two dysfunctional proteins, beta amyloid plaque and tau, in the brains of those afflicted. However, it’s possible to have amyloid plaque with no symptoms of cognitive decline, so its presence, alone, is not diagnostic of AD.

To receive an official diagnosis of Alzheimers, one must be both cognitively and behaviorally impaired, with a clear distinction in terms of previous and recent performance.

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Alzheimer’s Disease Signs And Symptoms

In the beginning stages of AD, symptoms are mild, but as the patient progresses through the 7 stages and the deterioration worsens, they become more severe and impairing:

  • Impaired memory and cognition
  • Difficulty completing daily tasks that used to be habitual. This could be at home or in the work environment.
  • Confusion regarding time and place
  • Decreased concentration
  • A decline in problem-solving abilities and planning skills
  • Problems with word-retrieval and limited vocabulary
  • Poor judgment when making decisions
  • Misplacement of items
  • Personality and behavior changes
  • Depression and other mood irregularities
  • Getting lost in familiar surroundings

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Diagnosis Of AD

Diagnosis of AD involves of variety of methods, including clinical assessments, cognitive and memory evaluations, physical exams, laboratory tests and brain imaging scans. These tests are usually performed by a neurologist or a doctor specializing in geriatrics.

Clinical assessments and physical exams provide extremely helpful information regarding the cognitive and behavioral abilities of the patient. Talking with family members to get a clear picture of how the decline in these abilities has progressed, is also vital.

Since AD is a type of dementia resulting in the progressive degeneration of brain cells, imaging scans can be used to help make a diagnosis, but in themselves, aren’t conclusive, due to an overlap in what is considered abnormal brain function, and normal brain changes in the aging population.

Brain imaging can help rule out causes that could potentially affect brain function, such as brain tumors, strokes, Parkinson’s Disease, and mood disorders. Imaging also allows for a baseline of degeneration to be established. Tests include MRIs, CT scans, and PET scans, which are useful in detecting inhibited glucose metabolism in the brain indicative of Alzheimer’s.

AD, is partly, a diagnosis of exclusion. Thyroid disorders and vitamin and mineral deficiencies, particularly a B12 deficiency, are important to rule out an Alzheimer’s diagnosis, as they can cause similar symptoms.

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What Are The 7 Stages Of Alzheimer’s Disease

The 7 Stages Of Alzheimer's Disease - Promolife BannerThere are 7 stages of Alzheimer’s disease. Initially, the symptoms are mild, but as the deterioration continues its descent, the symptoms become more severe.  AD is a cruel and debilitating disease that eventually robs those afflicted of their ability to reason, remember, and recognize those they love and associate with. It represents loss of autonomy, independence, and ultimately, loss of self. The stages are as follows:

1. No impairment: patients in this stage behave normally, with no apparent symptoms, yet imaging tests will reveal the presence of disease.

2. Very mild decline: in this stage, subtle changes begin to appear, but the person is still able to complete daily tasks and work without interference.

3. Mild decline: Irregular thinking patterns start to emerge in this stage, characterized by forgetfulness, repeating questions, inability to make plans, and a decrease in organizational skills.

4. Moderate decline: the decline is more pronounced in this fourth stage of disease progression. This is the stage where a diagnosis becomes clear, and is referred to as mild or early-stage AD. Every day tasks, that were previously habitual, become more difficult to accomplish.

5. Moderately severe decline: a sharp decline is seen in this stage of Alzheimer’s and dementia. Daily tasks cannot be accomplished without assistance. The symptoms become, markedly, more severe.

6. Severe decline: the disease is severe at this stage with patients needing help with personal tasks, such as visiting the bathroom, and getting dressed.

7. Very severe decline (clinical dementia):  severe symptoms appear in this final stage, including a lack of environmental awareness and a further decline in language. Physical symptoms, such as a decrease in muscle control, are also part of the picture.

Check out this informative audiobook: “Alzheimer’s and Dementia: The Home-Care Family Guide for The Elderly”

Alzheimer’s Disease Prevention

I had a personal experience this week with a woman suffering from AD. She had been very physically and mentally active her entire life, exercising regularly, and working as a travel agent. She was in the sixth stage of AD, was in diapers, but was still able to walk, and feed herself, with her husband’s supervision. He stated that his wife first noticed symptoms of forgetfulness when she was 65. She would cry herself to sleep every night because she knew something was desperately wrong. Can you imagine the terror?

Interestingly, due to her peak physical condition, her decline had been much slower than it, otherwise, would have been. Unfortunately, it was not enough to prevent the disease, but it did mitigate her decline. What a huge plug for all of us to take better care of ourselves, throughout our lifespans, both physically and mentally. Never will your efforts, in this regard, be a waste of time, even if you are genetically at risk to develop AD.

Diabetes, obesity, and hypertension are all risk factors for AD. Engaging in healthy lifestyle strategies like controlling your blood sugar, exercising consistently, and managing your stress, all go a long way in protecting your brain from age-related dementia and AD.

[Read More: 5 Ways To Make Self Care A Priority]

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Key Points

Alzheimers is a frightening and heartbreaking disease. It destroys the brain function and behavioral ability of those from which it steals. The stages of this destructive disease begin with no obvious signs, culminating in death. This disease is so very hard on the caretakers of those suffering with AD, often wrecking their health, as well, especially those who aren’t financially able to pay for assistance.

It’s a heartbreaking situation, Alzheimer’s can go on for years – hence, the name, “the long good-bye.”  Please carefully attend to your health, you never know if and when you’ll wind up as a loved one’s caregiver. It will take all the strength you have to give.

What is your experience with Alzheimer’s Disease? Let me know in the comments:)

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(1) US National Library of Medicine National Institutes of Health: Current understanding of Alzheimer’s disease diagnosis and treatment

(2) NCBI: Alzheimer Disease

(3) US National Library of Medicine National Institutes of Health: Alzheimer’s disease

(4) US National Library of Medicine National Institutes of Health: Alzheimer’s Disease: Diagnosis and Treatment Across the Spectrum of Disease Severity

(5) National Library of Medicine National Center for Biotechnology Information: Alzheimer’s disease: diagnosis and treatment across the spectrum of disease severity

(6) ResearchGate: Alzheimer’s Disease: Diagnosis and Treatment Across the Spectrum of Disease Severity

(7) Medical Clinics: Alzheimer’s Disease Clinical Spectrum

(8) Alzheimers.net: What Are the 7 Stages of Alzheimer’s Disease?


Disclaimer: “I am not a medical doctor, and therefore, cannot diagnose or treat any medical condition, nor do I claim in any way to cure disease. Please be diligent and always do your own research in regard to any material I present on this site. I claim no responsibility for any distress, whether it be physical or emotional, that may occur as a result of the information you obtain from my blog.”

10 thoughts on “What Are The 7 Stages Of Alzheimer’s Disease?”

  1. Hi Holly,
    This is a very useful article about Alzheimer. I always hear about this disease but I don’t know exactly what it is. I like your article because it talks about the seven stages of Alzheimer, the diagnosis, and the prevention of it. It is really a comprehensive article regarding everything about this disease. Everyone should take care from these diseases as you said that diabetes, obesity, and hypertension are all risk factors for AD.
    I heard once that learning languages help to prevent this disease. Do you think so?

  2. I’ve have relatives with Alzheimer’s, or some form of dementia. The sad thing is that I knew these people when they were mentally fit, only to witness their slow decline throughout the years. Some went downhill rather quickly, so to think that they were independent enough to take care of themselves at one time is staggering. 

    Ultimately, they were either forced to get care or move into a nursing home. It’s tragic! For me, AD is the second most terrifying disease after ALS.

    Fortunately for me, I do exercise, eat right, and maintain an overall healthy lifestyle, and one reason is because of my will to prevent diseases such as Alzheimer’s. It’s even more terrifying to read that the early stages of AD can develop in one’s 30s. That alone should motivate us all to pursue a healthier lifestyle. 

    • Hi Todd,

      I’m sorry to hear about your relatives. Dementia is heartbreaking for everyone involved. Fortunately, some people decline slowly, while others’ dementia can progress quickly. Eventually, these people will need outside help to ease the burden on their loved ones or their disease may necessitate moving into a care facility will they can get the care they need. 

      ALS is a terrifying disease. I know someone with it now and it’s tragic. Good for you for living a healthy lifestyle. It does make a difference. Thanks for taking the time to comment. 

  3. Holly, 

    This is a very informative article. My wife’s grandparents on both sides suffered from Alzheimer’s disease and it was terrible to watch. I wasn’t there for the beginning stages just the end and that was bad enough. 

    I could not imagine having to be the care taker and watch a love one suffer that way. Thank you so much for the encouragement to stay physically and mentally in shape in order to slow the process. It’s excellent advise for anyone. Do you have any recommendations on ways we can exercise our brains to keep them alert and strong? 

    • Hi Mason,

      Thank you. I’m sorry to hear about your wife’s grandparents. The progression of Alzheimer’s is truly heartbreaking to watch. I can only imagine how exhausting it would be physically, emotionally, and mentally to be the caretaker. 

      It’s important to stay in tip top shape in every area of our health, whether we fall victim to the disease or find ourselves in a caregiver role. Those who are in good physical health do fare better.

      Anything mentally challenging is good for the brain. I have Lumosity’s app on my phone and play three games every day to keep my brain sharp. It’s amazing what small consistencies every day can accomplish. You can check it out here. 

  4. Hello Holly, 

    This  is a very informative post about Alzheimer’s Disease. After reading what you’ve written, it scares me a lot. How interesting it is to know that just taking care of our health at a young age can prevent it from affecting us in the future. 

    I have not seen any cases of Alzheimer but I now dread it. I’m glad the husband is able to take care of his wife. That must be difficult. Is there a cure for the disease?

    • Hi and thanks for your comment,

      Alzheimer’s is a scary disease. The husband I referred to in my article was a wonderful caretaker and had immense patience and compassion for his wife. It was beautiful to see. 

      Even though his wife lived in a memory care facility, he still fed her dinner every night and tucked her in bed. Then he would return to his own home alone. He’d been doing that for ten years. It’s was truly inspiring!

      Unfortunately, there is no cure for the devastating disease, but there are treatment options that can mitigate symptoms. You can read more here

  5. This review is very educational and I have learned many things about Alzheimer’s Disease. Knowing that old age and genetics can cause this disease will make everyone very vigilante about their health and be consistent in getting regular check-ups. 

    Preventive measures can go a long way in curbing the disease or reduce its ill effects. Illness related to the brain is frightening and can render the victim useless, causing a series of unfortunate events. I found this article useful and I will bookmark it for future reference.

    • Thank you. Many people aren’t aware of the different stages of Alzheimer’s. Both old age and genetics are risk factors as are lifestyle and environmental factors so as you said, it’s essential that people engage in healthy lifestyle strategies.

      Alzheimer’s is a frightening and heartbreaking disease for both the victim and the care taker. It takes a toll on the caregiver because a person can live with the disease for years. Thanks so much for your comment!


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