Dementia is often associated with memory loss, confusion, and difficulty completing familiar tasks, but changes in memory are only part of the experience. Dementia can also affect mood, behavior, communication, sleep, and the way a person responds to the world around them. Anxiety, irritability, restlessness, agitation, and emotional outbursts may become part of those changes.
For families and caregivers, these behaviors can sometimes feel sudden or personal. Someone who was once patient may become easily frustrated. A familiar routine may suddenly create anxiety. A person may repeatedly ask the same question, pace through the house, resist care, become upset in an unfamiliar environment, or appear frightened without being able to explain why.
Understanding what may be happening beneath the behavior can change the way we respond to it.
When the World Becomes More Difficult to Understand
Imagine being somewhere familiar but suddenly being unable to remember why you are there. Someone you love is explaining something, but following the conversation has become difficult. You know you should recognize what is happening around you, yet pieces of the situation no longer make sense.
That experience can be frightening.
As dementia affects memory, communication, reasoning, and the ability to process new information, everyday situations may become increasingly difficult to navigate. Anxiety can develop when a person feels confused, overwhelmed, uncertain, or unable to communicate what they need. Irritability may be the outward expression of that frustration.
This is why behavior that appears unreasonable from the outside may make considerably more sense when viewed from the person’s perspective.
Anxiety and Irritability Can Have a Reason
Dementia itself can contribute to emotional and behavioral changes, but it should not automatically be assumed to explain every new behavior.
Pain, hunger, thirst, constipation, infection, fatigue, poor sleep, medication side effects or interactions, depression, changes in routine, unfamiliar surroundings, excessive noise, and difficulty communicating can all contribute to distress. Some people also experience increased confusion, restlessness, irritability, or agitation later in the day, sometimes referred to as sundowning.
A sudden or significant behavioral change deserves particular attention. When someone cannot easily communicate that something hurts or feels wrong, behavior may become one of the ways that discomfort is expressed.
Instead of only asking, “How do we stop this behavior?” it can be helpful to consider what the behavior may be communicating.
Responding to the Person, Not Just the Behavior
Individualized dementia care begins with recognizing that the person experiencing anxiety or irritability is still experiencing real emotions, even when their understanding of the situation has changed.
A calm voice, familiar routine, quieter environment, reassurance, adequate rest, comfortable surroundings, and simple communication can sometimes reduce distress. Arguing about facts or repeatedly correcting someone may increase frustration when dementia has made it difficult for that person to process or remember the information being discussed.
Families and caregivers can also begin noticing patterns. Does anxiety increase in crowded environments? Does irritability appear around bathing, meals, medications, or bedtime? Has sleep changed? Does the person seem uncomfortable? Did the behavior begin after a medication change, illness, hospitalization, or disruption in routine?
Those observations can provide valuable information when speaking with healthcare providers.
The Emotional Impact Is Real
Anxiety and irritability in dementia affect more than the people providing care. The individual living with dementia may be experiencing fear, confusion, frustration, loss of independence, or difficulty understanding changes they recognize but cannot control.
Caregivers may experience their own exhaustion, sadness, frustration, and uncertainty while trying to determine the right way to respond. A difficult interaction does not necessarily mean that someone has failed as a caregiver or that the person with dementia intended to cause distress. Dementia can change how someone interprets, communicates, and reacts to their surroundings.
Compassionate care means considering both sides of that experience.
Finding the Right Care
Persistent or worsening anxiety, irritability, agitation, sleep changes, aggression, or other behavioral symptoms should be discussed with an appropriate healthcare provider. Evaluation can help determine whether symptoms may be related to dementia itself, another mental health condition, physical discomfort or illness, medication effects, environmental factors, or a combination of several issues.
Treatment should be individualized. Environmental changes, caregiver strategies, routines, behavioral approaches, treatment of underlying medical problems, and other non-medication interventions may be appropriate. In some circumstances, psychiatric medication may also be considered, but medication decisions in older adults with dementia require careful evaluation of potential benefits, side effects, interactions, and safety.
The goal is not simply to make someone quieter or easier to care for. It is to understand what may be causing distress and determine how that person can be more comfortable, safe, and supported.
Psychiatric Support Through Serenity Health Telepsychiatry
Serenity Health Telepsychiatry provides psychiatric evaluation and medication management through secure telehealth appointments for eligible patients in North Carolina, Pennsylvania, Maine, and California. When anxiety, irritability, mood changes, or other psychiatric symptoms occur alongside dementia, a psychiatric evaluation can help families better understand the symptoms they are seeing and whether mental health treatment may be appropriate.
Care may also involve coordination with the patient’s primary care provider, neurologist, caregiver, or other members of the healthcare team when appropriate. Dementia can make care more complicated, but the person experiencing it remains an individual with their own history, needs, emotions, and quality of life.
Sometimes the behavior we see is only the visible part of what someone is experiencing. Understanding the person behind that behavior is an important place to begin.
