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The Stages of Alzheimer’s Disease

  January 02, 2018

By Linda Snyder, Dementia Advocate, The Villas of Hollybrook

Alzheimer's disease typically progresses slowly in three general stages — mild (early-stage), moderate (middle-stage), and severe (late-stage). Since Alzheimer's affects people in different ways, each person will experience symptoms — or progress through Alzheimer's stages — differently.

Overview of disease progression
The symptoms of Alzheimer's disease worsen over time, although the rate at which the disease progresses varies. On average, a person with Alzheimer's lives four to eight years after diagnosis, but can live as long as 20 years, depending on other factors.

Changes in the brain related to Alzheimer's begin years before there are any signs of the disease. This time period, which can last for years, is referred to as preclinical Alzheimer's disease.

The stages below provide an overall idea of how abilities change once symptoms appear and should only be used as a general guide. They are separated into three different categories: mild Alzheimer's disease, moderate Alzheimer's disease and severe Alzheimer's disease. Be aware that it may be difficult to place a person with Alzheimer's in a specific stage as stages may overlap.

Mild Alzheimer's disease (early-stage)
In the early stages of Alzheimer's, a person may function independently. He or she may still drive, work, and be part of social activities. Despite this, the person may feel as if he or she is having memory lapses, such as forgetting familiar words or the location of everyday objects.

Friends, family, or neighbors begin to notice difficulties. During a detailed medical interview, doctors may be able to detect problems in memory or concentration. Common difficulties include the following:
  • Problems coming up with the right word or name
  • Trouble remembering names when introduced to new people
  • Having greater difficulty performing tasks in social or work settings
  • Forgetting material that one has just read
  • Losing or misplacing a valuable object
  • Increasing trouble with planning or organizing
Moderate Alzheimer's disease (middle-stage)
Moderate Alzheimer's is typically the longest stage and can last for many years. As the disease progresses, the person with Alzheimer's will require a greater level of care.

You may notice the person with Alzheimer's confusing words, getting frustrated or angry, or acting in unexpected ways, such as refusing to bathe. Damage to nerve cells in the brain can make it difficult to express thoughts and perform routine tasks.

At this point, symptoms will be noticeable to others and may include the following:
  • Forgetfulness of events or about one's own personal history
  • Feeling moody or withdrawn, especially in socially or mentally challenging situations
  • Being unable to recall address, phone number, or the high school from which they graduated
  • Confusion about where they are or what day it is
  • Needing help choosing proper clothing for the season or the occasion
  • Trouble controlling bladder and bowels in some individuals
  • Changes in sleep patterns, such as sleeping during the day and becoming restless at night
  • An increased risk of wandering and becoming lost
  • Personality and behavioral changes, including suspiciousness and delusions or compulsive, repetitive behavior like hand-wringing or tissue shredding
Severe Alzheimer's disease (late-stage)
Late-stage care decisions can be some of the hardest ones that families face. In the final stage of this disease, individuals lose the ability to respond to their environment, to carry on a conversation and, eventually, to control movement. They may still say words or phrases, but communicating pain becomes difficult. As memory and cognitive skills continue to worsen, personality changes may take place and individuals need extensive help with daily activities.

At this stage, individuals may have the following symptoms:
  • Require full-time, around-the-clock assistance with daily personal care
  • Lose awareness of recent experiences as well as of their surroundings
  • Require high levels of assistance with daily activities and personal care
  • Experience changes in physical abilities, including the ability to walk, sit, and swallow
  • Have increased difficulty communicating
  • Become vulnerable to infections, especially pneumonia
Help is available. There are specialty care facilities that offer individualized healthcare plans, supervision by a nurse in a secured building that includes activity stations, outdoor walking paths, and sensory gardens. Families will find peace of mind knowing that their loved one is being cared for in a state-of-the-art retirement care community that specializes in Alzheimer's and other memory care.

If your loved one has been diagnosed with Alzheimer’s, you want them to have the best quality of life in a safe environment. It’s important that there is a compassionate staff to assist those who are experiencing confusion, wandering, sundowning, disorientation, loss of recognition of familiar faces and tasks. Equally important is an environment that encourages an active lifestyle. Behaviors need to be channeled into something positive. The goal is to connect with them in that moment and make every moment a meaningful one.

Regardless of what memory care facility you choose, you should make sure the staff is trained in the concept of ability focused activity to provide an environment that minimizes the unhealthy effects of the disease process. While abilities may diminish, the residents desire to succeed does not. Quality programs are designed to allow the resident success while emphasizing their strengths and maintaining their dignity.

The Alzheimer’s Association is a great resource for information on dementia and Alzheimer’s Disease. Their 24/7 Helpline offers confidential answers to your questions. Day or night, they are available to help you. For more information call them at 309-681-1100.

To learn more about the Villas of Holly Brook and the Reflections Memory Care community in Bloomington, visit If you would like to schedule a personal tour and share lunch with the Executive Director, please call 1-855-20 VILLA (1-855-208-4552).
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January 02, 2018


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