If someone you love has been diagnosed with dementia, you may wonder: Can dementia improve? The answer is complicated.
Most types of dementia are progressive, meaning the underlying disease typically gets worse over time. However, dementia symptoms can sometimes improve, fluctuate, or become less noticeable, particularly when another health problem, medication, or environmental factor is making symptoms worse.
Understanding the difference between dementia itself improving and dementia symptoms improving can help caregivers know what to expect—and when to seek medical attention.
Can dementia get better?
In most cases, dementia caused by diseases such as Alzheimer’s disease is not reversible. The changes in the brain that cause Alzheimer’s disease continue to progress over time.
However, that doesn’t mean a person with dementia will feel or function exactly the same every day.
Someone may have a particularly difficult day and then seem much more like themselves the next day. They may also experience periods when they communicate more clearly, participate more actively, or seem to remember more.
This can happen because dementia symptoms can fluctuate.
In addition, some conditions that cause or worsen confusion can be treated. When those conditions are addressed, a person’s thinking and behavior may improve significantly.
Why might dementia symptoms suddenly improve?
There are several reasons a person with dementia may seem better at one point than another.
1. A medical problem has been treated
Illnesses and infections can cause a sudden increase in confusion or changes in behavior in someone with dementia. Dehydration, constipation, pain, urinary tract infections, respiratory infections, and other medical problems can also affect thinking and behavior.
When the underlying problem is treated, the person’s symptoms may improve.
This is one reason a sudden change in someone with dementia should not automatically be assumed to be progression of the disease.
2. Delirium has resolved
Delirium is a sudden change in attention, awareness, and thinking. It is different from dementia, although someone can have both dementia and delirium.
Delirium can develop because of an infection, medication changes, surgery, dehydration, pain, or other medical issues.
Unlike dementia, delirium can often improve when its underlying cause is identified and treated.
If someone with dementia suddenly becomes much more confused, sleepy, agitated, or disoriented, contact their healthcare provider promptly.
3. Medication side effects have changed
Some medications can cause or worsen confusion, drowsiness, dizziness, or other cognitive symptoms.
A person’s symptoms may improve if a healthcare professional identifies a problematic medication or adjusts the treatment plan.
Never stop or change prescription medications without talking with the prescribing healthcare professional.
4. The environment has changed
People with dementia often function differently depending on their surroundings.
A noisy, crowded, unfamiliar, or stressful environment can make it harder for someone with dementia to think, communicate, or complete everyday tasks.
A calm, familiar environment with fewer distractions may allow the person to function better.
That doesn’t mean their dementia has reversed. It may simply mean that the environment is better supporting the abilities they still have.
5. The person is having a “good day”
Dementia isn’t always predictable.
A person may have difficulty remembering a family member’s name one day and successfully recall it the next. They may struggle to find words during one conversation but communicate more easily later.
These fluctuations can be especially confusing for caregivers.
It’s important to remember that a person’s abilities can vary from day to day without meaning that the underlying dementia has reversed or permanently improved.
Can someone with dementia regain lost memories?
Sometimes a person with dementia may appear to remember something that they previously couldn’t recall.
For example, a person may suddenly recognize a family member, remember an old song, or tell a story from many years ago.
This can be encouraging, but it doesn’t necessarily mean their memory has returned to normal.
Long-term memories can sometimes remain accessible even as other cognitive abilities decline. Familiar music, photographs, smells, places, and conversations may help bring those memories forward.
This is one reason reminiscence activities can be meaningful for people living with dementia.
Can lifestyle changes improve dementia symptoms?
Healthy habits can support overall health and may help a person maintain their abilities and quality of life for as long as possible.
Depending on the person’s health and abilities, helpful habits may include:
- Regular physical activity
- Staying socially connected
- Eating a balanced diet
- Getting adequate sleep
- Managing conditions such as high blood pressure and diabetes
- Treating hearing or vision problems
- Staying mentally and socially engaged
- Taking medications as prescribed
- Maintaining regular medical care
These steps do not cure Alzheimer’s disease or other progressive dementias, but they can support overall brain and physical health.
Caregivers should talk with the person’s healthcare provider before making significant changes to exercise, diet, medications, or other aspects of their care.
What if someone seems dramatically better?
A noticeable improvement can be wonderful—but a sudden or dramatic change in thinking or behavior deserves attention.
If someone with dementia suddenly seems much more confused, unusually sleepy, unusually agitated, or significantly different from their normal behavior, don’t assume it’s simply part of the dementia.
Contact their healthcare provider to determine whether something else may be happening.
Possible causes can include:
- Infection
- Dehydration
- Pain
- Constipation
- Medication side effects
- Low blood sugar
- Sleep problems
- Changes in the environment
- Delirium
- Other medical conditions
Identifying and treating these problems may help the person return closer to their usual level of functioning.
What caregivers should remember
One of the most important things to understand about dementia is that progression isn’t always a straight line.
There may be good days and difficult days. There may be moments of clarity mixed with confusion. A person may retain certain abilities while losing others.
When a loved one has a particularly good day, enjoy it. Talk with them. Listen to their stories. Look at old photographs. Play their favorite music. Take a walk together if they’re able.
And when they have a difficult day, remember that the difficult day doesn’t necessarily mean their dementia has suddenly progressed.
Dementia may not be reversible—but there is still plenty you can do.
While most progressive dementias cannot currently be cured or reversed, care can make a meaningful difference.
Understanding the disease, identifying treatable problems, creating supportive environments, and focusing on the person’s remaining abilities can help caregivers provide compassionate, person-centered care.
If you’re caring for someone with dementia, you don’t have to figure everything out alone.
The Alzheimer’s Alliance of Smith County provides education, support, resources, and services for people living with dementia and their caregivers. Contact us to learn more about how we can help your family navigate dementia.
Frequently Asked Questions About Dementia and Improvement
Can dementia symptoms come and go?
Yes. Dementia symptoms can fluctuate, and a person may have better or worse days. However, significant or sudden changes should be discussed with a healthcare professional because another medical issue may be contributing.
Can dementia be reversed?
Most progressive dementias, including Alzheimer’s disease, cannot currently be reversed. However, some conditions that cause dementia-like symptoms or worsen existing dementia symptoms may be treatable.
Can a person with dementia have good days?
Absolutely. Someone living with dementia can have days when they communicate more easily, participate in activities, or remember more than they typically do. A good day does not necessarily mean the underlying dementia has improved.
Why is my loved one with dementia suddenly more confused?
Sudden confusion can have many causes, including infection, dehydration, pain, medication changes, or delirium. A sudden change should be reported to a healthcare professional rather than automatically being attributed to dementia.
Does dementia always get worse?
Progressive dementias generally worsen over time, but the rate and pattern of progression vary from person to person. Symptoms can fluctuate, and some abilities may remain stable for a long time.
Living with dementia can be unpredictable. Knowing what changes are part of dementia—and what changes may signal another problem—can help caregivers respond with greater confidence and compassion.
If you or someone you love is living with dementia, the Alzheimer’s Alliance of Smith County is here to help.
