The Subtle Signs of Dementia Most People Miss
When most people think of dementia, they picture memory loss.
But dementia often begins with changes in mood, speech, behavior, or problem-solving—and if you don’t know what to look for, it’s easy to miss the early warning signs.
Recent headlines about actor Bruce Willis’ diagnosis have brought new attention to frontotemporal dementia (FTD)—a rare form of cognitive decline that often doesn’t affect memory at first.
And it’s just one of many types of dementia experts say are under-recognized.
Not All Dementia Is Alzheimer’s
While Alzheimer’s disease accounts for 60–80% of cases, other forms of dementia present differently—and often progress faster.
Here’s what sets them apart:
Alzheimer’s disease begins with short-term memory problems and gradually affects orientation, comprehension, and personality. It typically strikes adults over 65.
Lewy body dementia is marked by visual hallucinations, sleep issues, and movement problems. While memory can decline, early symptoms often mimic Parkinson’s or psychiatric disorders.
Vascular dementia is caused by impaired blood flow to the brain, often following a stroke. It can cause confusion, poor judgment, and difficulty organizing or planning.
Frontotemporal dementia (FTD)—which Bruce Willis was diagnosed with—affects the frontal and temporal lobes of the brain. It can cause sudden behavioral changes, emotional flatness, or trouble with speech and comprehension.
Cognitive decline doesn’t always start with forgetfulness. If you or a loved one are experiencing any of the following, it could be an early warning sign:
- Changes in personality or mood (apathy, irritability, lack of empathy)
- Struggling to find words or understand speech
- Sudden impulsive or inappropriate behavior
- Difficulty with planning, organizing, or decision-making
- Disorientation or confusion about time and place
These symptoms can appear years before a formal diagnosis. And they’re often dismissed as “normal aging”—which can delay important interventions.
Right now, there’s no cure for dementia. But that doesn’t mean you’re powerless.
Nearly 40% of dementia cases are considered preventable through healthy lifestyle changes—including managing heart health, staying socially and mentally active, and getting good sleep.
And early detection matters. The sooner cognitive changes are addressed, the more options patients and families have to slow progression and plan for care.
So don’t wait.
If something feels off, speak up—and get evaluated.
To knowing the signs, and take action early,
Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team
P.S. You can’t drug your way out of Alzheimer’s.
Sources:
MSN. (2025). Msn.com. https://www.msn.com/en-us/health/other/doctors-explain-how-dementia-and-alzheimer-s-differ-plus-signs-to-watch-for/ar-AA1uSfQG?ocid=entnewsntp&pc=DCTS&cvid=689f7e488e664fbb860be994bc7c91f8&ei=18
