End-Stage Alzheimer’s: Symptoms, Causes of Death, and End-of-Life Care

The final stage of Alzheimer’s disease is one of the most difficult periods a family can navigate. At this point, the brain’s ability to regulate basic bodily functions has severely declined, and the focus of care shifts from treatment to comfort. 

Knowing what to expect, and what care options are available, can help families make decisions that honor their loved one’s dignity and wellbeing.

What is end-stage Alzheimer’s disease?

Alzheimer’s disease progresses through seven recognized stages, from no cognitive impairment (Stage 1) to very severe decline (Stage 7). The term “late-stage” or “end-stage” Alzheimer’s typically refers to Stages 6 and 7, when both brain and physical functions experience profound deterioration.

In these stages, the death of neurons — the brain’s nerve cells — increasingly impairs the brain’s ability to control the body, Dr. Liz Sampson, a geriatric medicine specialist, told Being Patient.  “As the brain cells die off more quickly, more fundamental parts of the brain become affected — the parts of the brain that coordinate movement. That may mean that someone is unable to move around and they may need to be in bed all day,” Dr. Sampson said. 

A person in Stage 6 of Alzheimer’s typically cannot recognize faces except close friends and relatives. They may experience major personality changes and need assistance with basic daily tasks, including eating, using the toilet, and bathing.

At Stage 7, a person can sometimes utter words or phrases, but overall they have no self-awareness of one’s own condition. They need assistance with all aspects of daily life, and may lose the ability to swallow.

End-stage Alzheimer’s (Stages 6–7) involves severe neurological decline that affects a person’s ability to move, swallow, breathe, and regulate basic bodily functions.

Some individuals in end-of-life care experience what is known as terminal lucidity — a brief, sometimes unexpected return of clarity and awareness. This phenomenon, while not fully understood scientifically, has been reported across many types of dementia and can be both surprising and meaningful for families.

How does Alzheimer’s disease cause death?

Alzheimer’s disease can be itself the cause of death. The disease progressively destroys neurons throughout the brain, ultimately compromising systems essential to life. There are four primary mechanisms through which late-stage Alzheimer’s leads to death:

Respiratory failure

The brainstem controls breathing. When Alzheimer’s disease damages the brainstem, breathing difficulties may develop and can progress to respiratory failure.

Aspiration pneumonia

This is one of the most common causes of death in people with advanced Alzheimer’s. When the brain regions responsible for coordinating swallowing are damaged, food or liquid can enter the lungs instead of the stomach, leading to serious infections. Aspiration pneumonia — a lung infection caused by inhaled material — is often cited as the immediate cause of death in late-stage dementia.

Heart complications

Alzheimer’s can impair the autonomic nervous system — the system that regulates involuntary functions like heart rate and blood pressure — increasing the risk of heart attack.

Motor function loss

As motor neurons are lost, a person may lose the ability to move.. This prolonged immobility increases vulnerability to infections, pressure sores, and complications from falls that can arise as a result of muscle and motor function deterioration.

What does end-of-life care for Alzheimer’s look like?

When someone with Alzheimer’s reaches the final stage of the disease, the goals of medical care change significantly. Rather than treating the underlying disease, end-of-life care focuses on maximizing comfort, managing pain, and supporting the whole person — as well as their family.

Palliative care

Palliative care is specialized medical care focused on symptom management and comfort — and importantly, it is not limited to the end of life. Palliative care addresses body, mind, and spirit and extends support not just to the patient but to their entire family and network of care partners, at any stage of disease.

Hospice care

Hospice care is a specific form of end-of-life care, typically offered when a person is expected to have six months or fewer to live. It can be provided at home, in a care facility, or in a hospital setting, and is delivered by a team of healthcare professionals and trained volunteers. The focus is compassionate comfort while the person’s condition continues to progress.

Care homes and in-home care

In the late and final stages of dementia, people become fully dependent on others even for basic daily needs such as eating, bathing, and repositioning. This level of care may exceed what a family caregiver can safely provide alone, making professional care homes or structured in-home support services an important consideration.

How to have conversations about end-of-life care

Maribeth Gallagher, director of Arizona’s Hospice of the Valley dementia program discussed how to approach conversations with your loved one about end-of-life care. 

“Even as dementia progresses, the person isn’t stupid. They have brain changes that change the way they process information. Still, even when they struggle with what it is that you’re saying, they can read how we’re saying [it] and the attitude that accompanies it oftentimes,” she said. 

“Have that respectful, tender, normalizing presence. At one point in their condition, the decisions they want may be very different by the time they get to the next stage,” Gallagher said. “These are, in a way, ongoing conversations rather than a one-and-done.”

Nina Pflumm Herndon, executive director and founder of Sage Eldercare Solutions, recommends requesting a hospice consultation if you aren’t sure if it’s the right time to pursue hospice.

“They will come to the home to assess the client to determine eligibility and help families understand services offered,” she said. “For people who aren’t yet eligible, many hospices also run palliative or ‘pre-hospice’ programs that offer symptom management and access to members of their interdisciplinary team.”

What treatments are used in end-of-life Alzheimer’s care?

End-of-life treatment for Alzheimer’s disease prioritizes pain relief and comfort. Opioid medications such as morphine may be prescribed to relieve pain and ease breathing difficulties in people with advanced dementia. These medications are used to reduce suffering.

A caregiver’s perspective: What no one tells you

For many families, no amount of preparation fully readies them for the final stage of this disease. Jasja Kotterman, whose mother passed away from Alzheimer’s, reflected on what she wished she had known. 

“It was really important for the family to be with my mother at that last phase, and I think we were lucky that we got good help from the doctors and caregivers, who gave us timeframes of how long it would take and expectations of what would happen next,” Kotterman said. “But like Liz [Sampson] said, we couldn’t be given an exact timeline. However, they said, ‘These are probably things that will happen, and not always in the same order.’ That was surprising to me.”

Palliative care physician Dr. Lynn Hallarman, who cared for her own mother with dementia, said “[Just] because you can’t remember doesn’t mean you’re not who you are. You’re still who you are and you’re a person, and these times that I had with my mother I cherish completely because she was still wonderful.”

How to approach the final days

In the final days of life, you might notice that your loved one is sleeping more or eating less. Their breathing may become irregular. To help provide comfort and dignity, Herndon said, “Honor who they are and consider what would have brought them meaning and connection when they were well.”

This may include:

• Talking about shared memories
• Telling them what they mean to you
• Creating an environment they are comfortable in
• Considering who they want to see, noise levels, and activities
• Looking for signs of discomfort and notifying the hospice care team

As a caregiver, it’s important to practice self-care and make space for your own emotions. Remember to take time for yourself, whether it’s by calling a friend or family member to discuss your feelings, going for a walk outside, exercising or journaling.