Spotting the Early Signs of Alzheimer’s: When Should You Take Your Loved One to the Doctor?

Most families miss the best window for intervening in Alzheimer’s disease—not because they don’t care, but because they don’t know when to act. “My mother is 68. Lately she keeps forgetting things. Last week she left a pot on the stove and burned it dry. But other than that, she’s fine—she eats, she takes walks, and she speaks clearly. Is this just normal aging, or should we see a doctor?” Here’s the direct answer: if there’s been a change in “function”, it’s time to see a doctor.

What counts as a “functional change”? It’s not just “memory getting worse”—the more important question is whether daily living skills have declined. Take forgetfulness, for example. If someone occasionally forgets where they put their keys but can find them on their own, that may still be within the range of normal aging. But if they forget to turn off the stove or the faucet, or get lost on the way home, that goes beyond normal aging and requires medical attention. Many families wait until their loved one “can’t even recognize people” before coming to the hospital—but by then, it’s already too late.[1]

 

Below is a checklist of the red flags doctors care about most. If your loved one shows any one of these signs, don’t hesitate—make an appointment[2].

1. Memory-related signs

(1) Asking the same question over and over—forgetting the answer within 10 minutes and asking again

(2) Completely unable to recall recent events, while memories from decades ago remain vivid

(3) Increasingly relying on written notes or family reminders—otherwise forgetting to take medication or even eat

(4) Repeatedly buying the same item—already has groceries at home but buys the same things again

 

2. Executive function signs

(1) Unable to do household tasks that used to be second nature—forgetting to turn off the stove, doing steps out of order

(2) Noticeable decline in managing money—can’t balance accounts, can’t make change, easily falls for scams

(3) Can’t use small appliances they used to handle—the TV remote, microwave, smartphone

 

3. Language and orientation signs

(1) Can’t name everyday objects—points at “chopsticks” and says “that thing you eat with”

(2) Gets lost in their own neighborhood, can’t find the way home

(3) Can’t tell day from night—gets up in the middle of the night and starts getting dressed to go out

 

4. Personality and behavior signs

(1) A dramatic personality shift—a gentle person becomes irritable or suspicious

(2) Accusing family members or caregivers of stealing or hiding things

(3) Sudden hallucinations—saying they “see deceased relatives” or “someone is watching me”

(4) Becoming apathetic—completely losing interest in things they used to enjoy

Four things to do before the appointment

Step 1: Choose the right department. First choice is a memory clinic (also called a cognitive disorders specialty clinic), which many major hospitals offer. If one isn’t available, choose neurology.

Step 2: Write out an “unusual behavior list.” Don’t just say “memory is bad”—be specific. When did it start? What exactly happened? For example: “Since last October, left the stove on three times while boiling water.” Write it down in chronological order and show it to the doctor.

Step 3: Bring all current medications, including supplements. Some medications can themselves affect cognition (certain sleeping pills and allergy medications, for example), and the doctor needs to rule those out.

Step 4: Bring the right “translator.” Have the family member who knows the most about the patient’s daily life accompany them. This person is responsible for answering the doctor’s questions—don’t let the patient answer for themselves, because they may genuinely not realize there’s a problem.

 

At the doctor’s office: three do’s and three don’ts

1. During the interview: family should talk more, patient should talk less.

In a cognitive disorders clinic, the family is the doctor’s main source of information. Patients with dementia often lack awareness of their own problems—they sincerely believe they’re “fine.” If you let them answer on their own, the information is likely to be inaccurate. Give specific examples—“Since last fall, three times she left the stove on while boiling water.” Don’t give vague impressions—“Her memory just isn’t great.” If the patient interrupts and denies it: don’t argue. Smile, reassure them briefly, and continue telling the doctor the truth.

2. During cognitive testing: observe quietly, don’t help.

When the doctor administers cognitive scales, the family’s job is simple: sit quietly nearby and don’t answer for the patient. Many family members can’t resist prompting—but doing so inflates the score and misleads the diagnosis. In the end, the patient is the one who suffers. If the patient refuses to cooperate out of nervousness, gently reassure them: “Take your time, it’s okay.” If they truly can’t cooperate, explain the situation to the doctor and reschedule.

3. During imaging: prepare them in advance, ease their fear.

An MRI machine is cramped and loud, and many older adults get anxious. Tell them ahead of time: “You just lie down and they take a picture. It doesn’t hurt. It’s a little loud, but if you tough it out, it’ll be over before you know it.” You can also ask the doctor whether a family member can accompany them during the scan.

 

After the prescription: ask three things

1.How to take it? How many times a day, how many pills each time, before or after meals?

2.What side effects should be expected? Nausea, dizziness, and other side effects may occur at first. Which ones are normal, and how long until they go away?

3.When is the follow-up? Get a clear date and know what tests will be done at the next visit.

And the most important thing of all: family must supervise the medication every day. Do not leave the pills for the patient to manage alone—they may take too much, skip doses, or repeatedly ask “Did I already take it?” and end up double-dosing.

 

Alzheimer’s isn’t diagnosed the way a cold or fever is—it can’t be pinned down in a single visit. It requires symptom observation, cognitive assessments, imaging, and sometimes biomarker testing. This process can take weeks or even longer—and during that time, brain damage continues. Don’t wait for a “confirmed diagnosis” to act[1]. Recognizing the signs, making the appointment, and starting the evaluation is itself the first step. If any of the signs above appear, don’t wait, don’t “keep an eye on it,” and don’t assume “it’s just what happens when people get old.” Make an appointment with a memory clinic right away. Acting one day sooner may buy your loved one or two more years of independent living.

 

[1] Tarawneh R, Holtzman DM. The clinical problem of symptomatic Alzheimer disease and mild cognitive impairment. Cold Spring Harb Perspect Med. 2012 May;2(5):a006148. doi: 10.1101/cshperspect.a006148. PMID: 22553492; PMCID: PMC3331682.

https://pubmed.ncbi.nlm.nih.gov/22553492/#1

 

[2]Arvanitakis Z, Shah RC, Bennett DA. Diagnosis and Management of Dementia: Review. JAMA. 2019 Oct 22;322(16):1589-1599. doi: 10.1001/jama.2019.4782. PMID: 31638686; PMCID: PMC7462122.

https://pubmed.ncbi.nlm.nih.gov/31638686/