Dementia Personality Changes: First Signs
Is your loved one suddenly more grumpy than usual? Have they stopped talking to family or started saying things that seem strange? For many families, the first sign of dementia isn’t forgetting things. It’s when their loved one seems like a different person.
If you notice these changes in someone close to you, you’re not alone. Learning about the first signs of dementia personality changes can help you get answers and support sooner.
In this article, we’ll explore:
- Why personality changes can be the first sign of dementia
- Five common personality changes to look for
- How these changes differ from normal aging
- What steps to take if you’re concerned
Are you looking for more resources to learn about dementia symptoms, Alzheimer’s disease, or cognitive decline? Check if you have free access to Trualta.
Why Personality Changes May Be The First Sign Of Dementia
Dementia isn’t just about forgetfulness. Many people in the early stages don’t have big memory problems yet. Early symptoms include changes in how they act and feel. This happens because dementia affects parts of the brain that control mood, behavior, and how we get along with others.
Even before memory loss shows up, these changes can happen:
- A happy parent becomes quiet or angry
- A caring spouse stops showing they care about others
- A trustworthy sibling becomes suspicious of everyone
For families, this can feel confusing and even hurtful. But recognizing these early signs, which are possible signs of brain changes, can help you understand what’s happening and get help.
5 Common Personality Changes
While everyone ages differently, here are the most common early personality changes that can signal cognitive impairment:
1. Getting Angry More Often
One of the early symptoms may be getting upset more easily. Your loved one may:
- Get mad over small things
- Seem quick to anger, even when things are calm
- Act defensively when asked questions
This can be especially hard to understand when they used to be calm and easy-going.
2. Not Caring About Things (Apathy)
Losing interest in hobbies, social events, or even talking can signal early brain changes.
- They may sit quietly in a group and not join in social activities
- Skip activities they used to love
- Show no interest in planning or doing new things
While this may look like sadness, apathy in dementia feels more emotionally flat than deeply sad.
3. Being Suspicious
Has your loved one started thinking others are stealing, lying, or plotting against them?
- “You moved my keys again!”
- “They’re watching me.”
- “I can’t trust the neighbors anymore.”
Suspicion may start suddenly, especially in people who used to trust others easily. This behavior is an early warning sign of dementia-related changes.
4. Mood Swings
Dementia can make it harder to control emotions. Your loved one might:
- Cry easily or without warning
- Go from happy to angry in minutes
- Seem emotionally “off” or react too strongly
While mood swings and agitation can have other causes, when they happen with memory issues or withdrawal, they may point to something more serious.
5. Being Less Kind
Families often say their loved one has become “blunt,” “cold,” or mean.
- They may interrupt or take over conversations
- Say rude things they would never have said before
- Show less concern for others’ feelings
This loss of social skills is especially common in frontotemporal dementia (FTD), a type of dementia where behavior changes often happen before memory problems.
When To Be Concerned & What To Do Next
If you’ve seen one or more of these signs for weeks or months, not just days, it’s time to act. You don’t have to figure this out alone. Many caregivers describe a “gut feeling” long before getting a formal diagnosis, when their loved one just doesn’t seem like themselves anymore.
If that’s where you are, trust your instincts. Here’s what you can do:
Keep Track Of The Behavior
Write down what you’re noticing: Dates, examples, and what might have triggered it. This will help doctors see patterns and possible disease progression.
Example tracking:
- Date: March 15
- What happened: Got very angry when asked about taking medication
- How long it lasted: 30 minutes
- What seemed to trigger it: Feeling questioned
Rule Out Other Causes
Some personality changes can come from:
- Medicine side effects
- Depression or grief
- Thyroid problems
- Urinary tract infections (especially in older adults)
These are often fixable, so it’s worth checking with a doctor.
Encourage A Doctor Visit
To avoid making the person defensive, make it about health, not personality. Try saying, “I’ve noticed a behavioral change that worries me. I think it’s worth checking with the doctor to be safe.”
When you visit the doctor, be ready to answer these questions:
- How long have you noticed these symptoms?
- What medicines is your loved one taking?
- Have they had any recent illnesses?
You can also come prepared with your own questions, like:
- What tests might help rule out other causes?
- What support is available for families?
Get Another Family Member Involved
Sometimes, you’ll need help documenting changes or encouraging your loved one to see a doctor. Don’t carry this worry alone.
Why Finding Out Early Matters
Recognizing dementia early doesn’t change the diagnosis, but it can change everything else:
- Access to medicines that may slow progression
- Ability to join clinical trials
- More time to plan for money, caregiving, and ageing wishes
- Emotional relief through understanding what’s happening
Early detection also helps you, the caregiver, find support, resources, and tools that make caregiving easier and help protect your own health and well-being.
Key Takeaways
- Personality changes can be early signs of dementia, often appearing before memory loss.
- Common personality changes include increased anger, apathy, suspicion, mood swings, and less kindness.
- These changes differ from normal aging and are often caused by dementia affecting parts of the brain controlling mood and behavior.
- If you notice these signs, track them, rule out other causes, encourage a doctor visit, and involve other family members.
- Early detection can provide access to treatments, clinical trials, and more time for planning.
- Don’t forget to check if you have free access to Trualta for more information about caring for someone with dementia.
References:
- Alzheimer’s Association. (2024). What is frontotemporal dementia?
- Alzheimer’s Society. (2024). Frontotemporal dementia.
- NHS. (2024). Symptoms of dementia.
- Mayo Clinic. (2024). Dementia – Symptoms and causes.
