You may have come across references to the seven stages of Lewy body dementia while searching for answers. However, there’s an important distinction to understand: Lewy body dementia doesn’t have seven formally recognized stages.
The seven-stage model commonly discussed online was developed to describe cognitive decline, particularly in Alzheimer’s disease. While it offers some general context, Lewy body dementia can develop quite differently.
Understanding those differences can help you recognize changes and prepare for future care needs.
What Is Lewy Body Dementia?
Lewy body dementia (LBD) is one of the most common forms of progressive dementia. According to the National Institute on Aging, it develops when abnormal deposits of a protein called alpha-synuclein build up in the brain. These deposits, known as Lewy bodies, interfere with the brain’s normal functioning.
LBD can affect thinking, memory, movement, sleep, and behavior. It generally develops in adults over 50, although younger individuals can also be affected.
There are two closely related forms of Lewy body dementia:
- Dementia with Lewy bodies (DLB): Changes in thinking and attention typically appear before or around the same time as movement difficulties.
- Parkinson’s disease dementia: Dementia develops in someone who has already been living with Parkinson’s disease, usually after years of movement-related symptoms.
Although these conditions share many features, their early symptoms can be quite different.
One of the distinguishing characteristics of Lewy body dementia is that memory loss may not be the first or most noticeable symptom. Someone may first struggle with concentration, experience unusual sleep disturbances, or have difficulty with movement.
Does Lewy Body Dementia Have 7 Stages?
You may have read articles describing seven distinct stages of Lewy body dementia, each associated with particular symptoms.
However, according to the Lewy Body Dementia Association, there are no formally defined stages of LBD comparable to those used for Alzheimer’s disease.
The familiar seven-stage model is based on the Global Deterioration Scale, which describes progressive changes in cognitive abilities and independence.
The stages are generally summarized as follows:
- Stage 1: No noticeable cognitive impairment. There are no apparent difficulties with memory, thinking, or everyday activities.
- Stage 2: Very mild cognitive changes. Occasional forgetfulness or difficulty recalling names may occur without significantly affecting daily life.
- Stage 3: Mild cognitive decline. Problems with concentration or remembering information become more noticeable.
- Stage 4: Moderate cognitive decline. Everyday responsibilities, such as managing finances or planning activities, become more challenging.
- Stage 5: Moderately severe cognitive decline. The person needs regular help with some daily activities and may experience increasing confusion.
- Stage 6: Severe cognitive decline. Significant changes in thinking, memory, and behavior create a need for substantial personal care.
- Stage 7: Very severe cognitive decline. The person becomes highly dependent on others and may lose the ability to communicate verbally or move independently.
These descriptions can help explain how dementia affects someone’s independence over time.
But they aren’t a reliable way to predict the progression of Lewy body dementia.
For example, visual hallucinations can occur early in LBD, even when memory and other cognitive abilities remain relatively strong. Problems with movement and balance can also develop at different points.
Rather than trying to identify a precise numbered stage, families may find it more helpful to understand the generalized early, middle, and later phases of the disease.
You can read more about the general staging framework in our guide to the stages of dementia and Alzheimer’s disease.
What Happens in the Early Stages of Lewy Body Dementia?
Early symptoms of Lewy body dementia can be subtle. You might notice changes in your loved one’s behavior or abilities without immediately recognizing them as signs of dementia.
In some cases, sleep disturbances appear years before more obvious cognitive problems.
One example is REM sleep behavior disorder, which causes people to physically act out their dreams. Someone may shout, move their arms, kick, or even fall out of bed while sleeping.
Other early symptoms may include:
- Difficulty concentrating or following conversations
- Changes in attention and alertness
- Visual hallucinations, such as seeing people or animals that aren’t there
- Slower movement, muscle stiffness, or changes in walking
- Depression, anxiety, or changes in mood
Not everyone experiences these symptoms, and they don’t necessarily appear in a predictable order. We must keep restating this point – each case varies, and we can’t rely on a pattern.
Why Do Lewy Body Dementia Symptoms Fluctuate?
One particularly confusing feature of LBD is the way someone’s thinking and alertness can change throughout the day.
Your loved one might have a perfectly coherent conversation over breakfast but seem unusually confused or withdrawn a few hours later.
You may even wonder whether their condition has suddenly become worse, only to find that they seem much more like themselves again the following morning.
These fluctuations are a recognized feature of Lewy body dementia and can feel like a rollercoaster for care partners.
Even though we see these fluctuations in LBD, it’s still important to discuss a sudden or substantial change in someone’s usual condition with a healthcare professional. Illness, medication reactions, and other medical problems could be causing changes that require treatment, so don’t simply assume it’s the LBD.
How Can You Help During the Early Stages?
If your loved one has recently received a diagnosis, encourage them to remain involved in everyday life and decisions about their future.
There may be opportunities to address symptoms and make small changes around the home that support independence.
This is also a useful time to discuss future care preferences, review financial and legal arrangements, and begin building a support network to prepare for later stages in the disease.
Our articles on what happens after a dementia diagnosis and planning after a dementia diagnosis offer more guidance on taking these first steps.
What Happens in the Middle Stages of Lewy Body Dementia?
As Lewy body dementia progresses, changes in thinking and physical abilities generally become more noticeable.
Your loved one may need help managing medications, preparing meals, getting dressed, or moving safely around the house. Movement difficulties can become particularly challenging. Stiffness, poor balance, or a shuffling walk may increase fall risk. Hallucinations and changes in behavior may also become challenging to manage.
Hallucinations can be a point of contention because, for them, the experience can feel entirely real. We must remember this. Rather than repeatedly correcting them, try to understand how they’re feeling. If they seem frightened, offer reassurance and help them move somewhere they feel more comfortable.
Not every hallucination causes distress. Some people experience them without feeling particularly concerned, and medical treatment may not be necessary unless the symptoms become troubling or unsafe.
How Can Caregivers Adapt?
At this point, many care partners find that their caregiving responsibilities have increased considerably.
You may be spending more time supervising daily activities or worrying about leaving your loved one alone.
Consider how you can make everyday routines easier. Clear walkways, good lighting, and mobility aids could reduce some safety risks. A physical or occupational therapist can recommend adaptations based on your loved one’s abilities.
You should also continue working closely with their medical team.
One important consideration with Lewy body dementia is medication sensitivity. Certain antipsychotic medications can cause serious reactions, including increased confusion and worsening movement difficulties. Make sure everyone involved in your loved one’s medical care knows about their LBD diagnosis.
As their support needs increase, you may also want to explore in-home assistance, respite care, or a memory care community.
Seeking additional help doesn’t mean you have stopped caring for your loved one. It can allow you to continue supporting them while making sure their changing needs are met.
What Happens in the Later Stages of Lewy Body Dementia?
In advanced Lewy body dementia, people generally become increasingly dependent on others for their daily care.
The combination of cognitive and physical symptoms can make even familiar activities difficult.
Your loved one may experience significant difficulty walking, communicating, or maintaining their balance. They may also have trouble swallowing, which can increase the risk of choking, dehydration, and respiratory infections.
At this point, they may require assistance throughout the day and night. Care often focuses more heavily on physical comfort and preventing complications.
Families may also benefit from discussing palliative care, which aims to relieve discomfort and improve quality of life while supporting both the individual and their caregivers. Hospice care may become appropriate as someone approaches the end of life.
Although communication can become difficult, it’s still worth finding ways to connect.
Your loved one may enjoy familiar music, respond to a reassuring voice, or find comfort in your presence. Their ability to express themselves may have changed, but you can continue to offer companionship and affection.
How Quickly Does Lewy Body Dementia Progress?
There is no reliable way to predict exactly how quickly Lewy body dementia will progress in any individual.
The National Institute on Aging reports that people live an average of approximately five to seven years after diagnosis. That being said, the range can be considerably wider, sometimes extending to 20 years.
The person’s age, overall health, and the severity of their symptoms are all factors affecting progression.
We should think of these figures as broad patterns. They can’t tell you how much time your loved one has or exactly when their care needs will change. It’s also important to guard against thinking that a bad day or week means they’ve entered into a new stage of the disease.
As you see symptoms fluctuate, ongoing conversations with healthcare professionals are much more useful than trying to fit every change into a rigid timeline.
Can Lewy Body Dementia Be Treated?
There’s currently no cure for Lewy body dementia, but treatment can help manage certain symptoms and support quality of life.
Depending on your loved one’s needs, their care plan may include medications to address cognitive or behavioral symptoms. Physical therapy can support movement, and they can also get treatment for sleep difficulties.
As mentioned before, though, some medications can make LBD symptoms worse, so treatment decisions should involve clinicians who understand the condition. You’ll have to monitor the effects of any new medication.
If you suspect your loved one has Lewy body dementia, but they haven’t received a diagnosis, speak with their primary care provider about an evaluation. A neurologist with experience in dementia or movement disorders may also be able to help.
Consider keeping a record of the changes you’ve noticed. These details give professionals a full picture of what’s happening.
When Should You Ask for Additional Help?
You don’t need to wait until your loved one requires around-the-clock care before reaching out for support.
In fact, learning about your options earlier makes future decisions easier.
Think about how dementia is affecting both your loved one and your family. Are you concerned about falls or their safety at home? Are daily responsibilities becoming harder to manage? Are you struggling to balance caregiving with work or your own health?
These are all good reasons to begin a conversation about additional support.
A memory care community may eventually become an appropriate option, particularly when your loved one needs consistent supervision or more assistance than you can comfortably provide at home.
How Can Bridges® by EPOCH Help?
At Bridges® by EPOCH, we understand that dementia affects every family differently. We provide specialized memory care for people living with Alzheimer’s disease and other forms of dementia, including Lewy body dementia.
Our communities offer personalized care, thoughtfully designed environments, and daily programming adapted to residents’ individual abilities and interests.
We also recognize how much families and caregivers need information and support as their loved one’s condition changes.
Through our EPOCH Exchange Resource Center, complimentary educational events, and caregiver support groups, we help families better understand dementia and make informed decisions about care. We’re here to answer your questions.
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