Somewhere in the first year, most families caring for someone with dementia arrive at the same question: how do I get him to stop doing this?
Stop asking the same question. Stop accusing me of stealing. Stop fighting me at the bathroom door.
It’s an understandable question, and it almost never produces a useful answer, because it assumes the behavior is the problem. Forty years of dementia research points somewhere else. In 1996, a group of nursing researchers led by Donna Algase published a framework that reorganized the field: the Need-Driven Dementia-Compromised Behavior model. Its argument was that what caregivers were calling disruptive behavior was better understood as communication. It is an attempt to express a need or pursue a goal, made by a brain that has lost the machinery to express it in words.
Under that model, every behavior sits at the intersection of two forces. Background factors are relatively fixed: the type of dementia, how far it has progressed, the person’s health, and who they were before any of this started. Proximal factors are the ones that change hour to hour: pain, hunger, a full bladder, fatigue, noise, glare, a rushed caregiver, a cluttered room. Background factors explain vulnerability. Proximal factors explain why now, and proximal factors are the ones a family can actually change.
This shift matters practically, not just philosophically. The question stops being how do I stop this? and becomes what is this asking for? That is a question with answers.
Before the twelve: check the body first
One rule sits above everything else in this article, and skipping it wastes months.
A sudden behavior change is a medical event until proven otherwise. Not a personality change. Not the disease progressing. Older adults with dementia frequently develop urinary tract infections, constipation, dehydration, dental abscesses, and medication reactions that they cannot report, and the only signal the body can send is behavioral. A person who was calm on Tuesday and combative on Thursday has usually not entered a new stage of dementia. Something hurts, or something is wrong, and the shouting is the report.
The most compelling evidence for this comes from a cluster-randomized trial published in BMJ in 2011 by Bettina Husebo and colleagues. Working in Norwegian nursing homes with patients who had moderate to severe dementia and significant agitation, the researchers did not introduce a behavioral program. They introduced a stepwise pain treatment protocol. For eight weeks, they simply treated pain systematically. Agitation scores fell by an average of 17 percent compared with controls.
Read that again. A meaningful share of what was being managed as dementia behavior was untreated pain.
The National Institute on Aging makes the same point in gentler language: when agitation or aggression appears, a medical exam to rule out physical causes comes before anything else.
So before working through any of what follows, rule out the boring explanations in this order: pain, infection, constipation, dehydration, hunger, needing the toilet, too hot, too cold, new medication, poor sleep. Most of the time the answer is on that list.
The twelve
Each of these follows the same three-part structure: what is actually happening, what to change in the environment, and what to say.
1. Refusing to bathe
What’s underneath: Almost never stubbornness. Bathing asks a person with dementia to undress in front of someone, step onto a slick surface with impaired balance, and get sprayed with water they cannot anticipate, all while cold. Water hitting the head and face is startling to a brain that can no longer predict what comes next. Add that many people were raised in an era of weekly baths, and “I already had one” may be entirely reasonable by their internal calendar.
What to change: This is one of the few areas of dementia care with hard trial evidence behind it. The Bathing Without a Battle program, developed through NIH-funded research at the University of North Carolina at Chapel Hill and Oregon Health & Science University, tested person-centered bathing methods against usual practice. Across more than 500 videotaped baths, researchers recorded a 56 percent reduction in aggressive behavior toward caregivers, a 62 percent reduction in agitation, and a 67 percent reduction in distress. The follow-on trial by Philip Sloane and colleagues, published in the Journal of the American Geriatrics Society in 2004, found that both person-centered showering and the towel bath (a full bed bath using warm, damp towels and no shower at all) produced these effects.
The specifics that do the work: warm the room first, keep the person covered with a towel while washing underneath it, wash the face last, use a handheld shower head aimed low rather than an overhead spray, and let go of the idea that a shower is the only route to clean. Two towel baths a week and a daily wash at the sink is legitimate care, not a compromise.
What to say: Not “it’s time for your shower.” Try “let’s get you freshened up before your daughter comes.” That gives a reason, a warm frame, and no word that starts the fight.
2. “I want to go home,” while sitting at home
What’s underneath: Home is not the address. It is a feeling: safety, competence, being needed, a time when the world made sense. The request usually surfaces in the late afternoon, when fatigue is highest and the room is filling with shadows. Correcting the geography (“Mom, you are home, you have lived here thirty years”) answers a question they did not ask and confirms that nobody understands.
What to change: Look at what happened in the twenty minutes before. Noise, a crowd, a TV, a task that exposed a failure. “Home” often follows a moment of feeling lost in one’s own life.
What to say: Go for the feeling. “Tell me about your home.” Then let them talk, and let the wanting drain out through the telling. It works far more often than any argument.
3. The same question, every ninety seconds
What’s underneath: Repetition is almost always anxiety wearing a question as a costume. The words are “what time is the appointment?” The content is am I safe, is something about to happen that I cannot handle? Answering the words leaves the anxiety intact, so the question returns.
What to change: Externalize the answer. A whiteboard by the chair with today’s date and the one thing happening today removes the need to hold it in memory. If a question repeats about an event, the event is too far in the future to have been mentioned.
What to say: Answer the emotion once, then give the memory a home. “You’re wondering about the appointment. It’s at two, I’m driving you, and I wrote it right here on the board so you can check any time.” Then redirect to something with hands in it.
4. “You stole my wallet”
What’s underneath: This is the accusation that ends relationships, and it is a mechanical failure, not a moral one. The wallet is missing. The brain has no memory of putting it in the freezer. It has, however, retained a general model of the world in which missing objects have been taken. Faced with a gap, the brain fills it with a plausible story. Clinicians call this confabulation, and its defining feature is that the person has no awareness the memory is manufactured. To them, it is simply a memory. The accusation lands on whoever is closest, which means it lands on whoever loves them most.
What to change: Learn the hiding places. There are usually two or three, and they are stable. Buy duplicates of the items that go missing most: a second wallet with expired cards, a second set of keys. Check wastebaskets before emptying.
What to say: Never defend yourself. Defense is an argument, and you cannot win an argument against a memory. “That wallet has your whole life in it, no wonder you’re upset. Let’s look together.” Then find it, and hand it to them without a lesson attached.
5. Sundowning
What’s underneath: Increased confusion and agitation from late afternoon through the evening. The Alzheimer’s Association is careful to describe it as a cluster of symptoms rather than a disease, and the honest state of the science is that nobody fully knows the mechanism. Research estimates of how many people it affects range from roughly 3 percent to two-thirds of people with dementia depending on how it is defined, which tells you how loosely the concept is drawn. The leading explanations: accumulated exhaustion from a full day of effortful navigation, a disrupted internal clock, and falling light levels that lengthen shadows and make the room harder to interpret.
What to change: The light is the most actionable lever. Turn lamps on before dusk rather than after. You are trying to prevent the transition, not respond to it. Close curtains to remove the reflections. Cut caffeine after noon. Move every demanding task, including bathing, doctors, and visitors, into the morning. Keep the evening quiet: no TV news, no crowd, no big decisions.
What to say: Fewer words, slower, lower. Late-day agitation is a bandwidth problem, and every sentence you add is a load. Offer one simple, physical thing: folding towels, a walk to the mailbox, a hand to hold.
6. Shadowing
What’s underneath: They follow you from room to room, and cannot bear the bathroom door closing. You are the last reliable landmark in a world that no longer holds still. When you leave the room, you effectively stop existing.
What to change: Anchor them to something before you go. Give them a task with a beginning and an end, like sorting, folding, or stirring, and start it with them so the momentum carries. Some families find a recorded message or a familiar radio program keeps a thread of your presence in the room.
What to say: Announce the return, not the departure. “I’m going to the kitchen and I’ll be back in two minutes.” Say it every time, even when it seems absurd, even when they will not remember. The tone registers even when the words do not.
7. Exit-seeking
What’s underneath: The Alzheimer’s Association estimates that up to 60 percent of people with dementia will wander at some point. It usually is not aimless. It is purposeful behavior aimed at a goal that no longer exists: getting to work, picking up children, going home. The person is trying to do something responsible.
What to change: Safety infrastructure comes first, and it is not optional. Alarms on exterior doors. A latch mounted high or low, outside the normal visual field. Nothing that could trap them in a fire. Register with a location service. Keep a current photo on your phone, and tell the neighbors. A five-minute awkward conversation buys you a search party. If someone goes missing, the Cleveland Clinic’s guidance, drawing on Alzheimer’s Association data, is to search the house and yard thoroughly and then call police at the fifteen-minute mark. Most people are found within about 1.5 miles.
What to say: Do not block the door, because physical blocking escalates. Join the mission and redirect it. “I’ll come with you. Let’s have a cup of coffee first, then we’ll head out.” The urgency almost always dissolves within a few minutes, because the goal was never really the door.
8. Refusing to eat, or eating only dessert
What’s underneath: Several things at once. Sweet is the last taste to fade, so dessert genuinely tastes better. Depth perception degrades, so a white plate on a white tablecloth can be hard to see. A busy plate with three foods on it is a decision problem. And utensils require sequencing that may be gone, though the hands still know how to pick up.
What to change: High-contrast plates against the placemat. One food at a time on the plate. Convert meals into finger food: a sandwich, not a casserole. Remove the TV. Sit and eat with them, because mirroring reactivates the pattern more reliably than instruction does.
What to say: Skip “you need to eat.” Model instead. Sit down, pick up your own fork, and start. Then hand them theirs.
9. Rummaging and hiding
What’s underneath: Searching behavior, often for security. Many people who hide things lived through the Depression, a war, or a period of real scarcity. Hiding valuables was once wisdom, and it is still running.
What to change: Do not fight it. Give it somewhere to go. A dedicated drawer or box that is theirs to rummage, filled with safe, interesting objects and a few things that feel valuable. Check the trash before it goes out. Keep genuinely important documents somewhere else entirely.
What to say: Nothing corrective. Rummaging that harms no one is a person soothing themselves with the only tool they have left.
10. “I don’t know this person”: rejecting the caregiver
What’s underneath: The most under-discussed problem in home care. A stranger arrives in the house and asks to help with intimate tasks. That is a reasonable thing to object to, and the objection is often the healthiest response in the room.
But there is a second layer that families miss. In dementia, care is not transferable the way it is elsewhere. What makes it work is pattern: the same face, the same sequence, the same words at the same hour. Every new caregiver resets that pattern to zero, and the resistance you see on day one may just be day one repeating itself. This is why continuity is a clinical variable in dementia care and not merely a preference, and it is why the rotating-substitute model that works acceptably for companionship or housekeeping tends to fail here. A caregiver with real dementia training knows to approach from the front, at eye level, to introduce themselves the same way every visit as though it were the first, and to spend the opening days building nothing but familiarity.
What to change: Overlap the first shifts with someone the person trusts. Have the new caregiver arrive and simply be present, with no tasks, for the first visit or two. Introduce them by relationship, not job title.
What to say: Not “this is your caregiver.” Try “this is Maria, she’s a friend of mine, she’s going to have coffee with us.” A job title implies deficiency, and people with dementia hear that implication clearly.
11. Mistaking a spouse for a parent
What’s underneath: Memory loss does not erase uniformly. It strips backward through time. When the most accessible decades are the 1950s, the internal age becomes twenty-five, and a seventy-year-old spouse standing in the kitchen does not match the twenty-five-year-old’s model of who should be there. The brain reaches for the nearest fit: a parent. Sometimes the reverse happens, and a spouse is treated as an intruder while the “real” husband is expected any minute.
What to change: Little, environmentally. This one mostly asks something of the family: the ability to absorb it without correcting. Photographs from the era they are living in can help more than photographs of last Christmas.
What to say: Take the role. If you are being addressed as a mother, answer warmly as one. This feels like a betrayal of your own history, and it is one of the hardest things in this article, which is why the spouse in this situation needs support of their own, not just technique.
12. Undressing at the wrong moment
What’s underneath: Read it as a signal, not an act. Too hot. A scratchy tag. A waistband that hurts. Needing the toilet and no longer having the words for it. Occasionally, damage to the frontal lobe has weakened the brake on impulse, but that is the last explanation to reach for, not the first.
What to change: Soft fabrics, no tags, elastic waists. Track whether it clusters around a time of day. If it does, that is a toileting schedule, not a behavior. A cardigan they can remove gives the impulse a legal outlet.
What to say: Nothing shaming, and nothing loud. Guide, cover, redirect, move on.
The honest question: is it okay to lie?
Sooner or later, someone asks where their mother is, and their mother has been dead for forty years.
Tell the truth and you deliver a bereavement, in full, to someone who will forget the words and keep the grief. Tomorrow they will ask again, and you will do it again. The field’s answer to this has evolved into what is often called therapeutic fibbing: entering the person’s reality rather than dragging them into yours. The Alzheimer’s Society in the UK has framed the dilemma about as squarely as anyone. Nobody wants a default setting of dishonesty, but the whole truth can be brutal, and few people would defend delivering it repeatedly to someone asking after a long-dead parent.
Two cautions worth more than the technique itself.
People sense more than they remember. Susan Wehry, a geriatrics faculty member at the University of New England, makes the point that memory impairment leaves social awareness largely intact. People often register that they are being handled, even when they cannot say why. A clumsy lie costs trust that you will need later. Many practitioners have shifted the language toward “creative communication,” and clinicians like Maureen Beck at UTHealth Houston suggest that starting a different conversation is usually better than fabricating an answer.
Use a ladder, not a reflex. Acknowledge the feeling first (“you’re missing her”). Then try redirection. Reach for a fib only when the first two fail and the truth would cause real distress. Keep it small and kind: she is not here right now, let us have lunch, and I will let you know when she comes. Lying for convenience is a different thing entirely, and the distinction is easy to lose when you are tired. Notably, when UK researchers asked people in early-stage dementia what they thought, they broadly supported being lied to, provided it was well-intentioned and came later in the disease.
Four things that reliably make it worse
Reality orientation. “Dad, Mom died in 1984.” Correction does not restore the memory. It delivers the loss again, fresh.
Quizzing. “Do you remember what we did yesterday?” You have set an exam they will fail. Say “I loved our walk yesterday” instead, and hand them the memory rather than demanding it.
Elderspeak. The sing-song voice, the plural “we” (“are we ready for our bath?”), the volume. Research on care refusal has found this pattern predicts resistance rather than cooperation. It signals I do not consider you an adult, and that message survives intact long after the words stop parsing.
Arguing. You will never win. The other person’s reality is not a position they have adopted. It is the only world they have.
The part almost everyone skips: write it down
Here is what quietly defeats families. They spend nine months learning that Dad calms down with the Ella Fitzgerald record, that the bath goes better after lunch and never before, that the phrase “let’s take a break” works and “calm down” starts a war. Then that knowledge lives only in one person’s head. A new caregiver starts, or the primary caregiver gets the flu, and every hard-won lesson evaporates.
Keep a behavior log for two weeks. Five columns: time, what happened, what came immediately before, what you tried, what happened next. Patterns surface fast, and they are rarely the ones you expected. The trigger for the 4 p.m. agitation turns out to be the mail carrier. The bath resistance turns out to be the exhaust fan.
Then turn the log into a one-page document that anyone entering the house reads first. What he was before he was a patient. What settles him. What sets him off. Exact words that work. This page is the single highest-leverage thing a family can produce, and almost nobody produces it.
None of this makes dementia easier to bear. What it does is give you somewhere to look when the moment arrives, and something to do besides absorb it. The behavior is not the enemy. It is the last language available, and it can be learned.