Memory Loss
- Name the signs and causes of memory loss.
- Understand the critical role of early intervention.
- Describe the signs, symptoms, progression, and types of dementia.
- Explore strategies to create a supportive and safe environment for individuals with dementia.
- Distinguish between memory loss associated with Alzheimer's, depression, delirium, and normal aging.
Introduction
Memory loss is when someone forgets things they used to remember or can't recall things that happened in the past. There are many reasons. Sometimes it happens suddenly, sometimes slowly. It can be permanent or temporary, and can get worse over time.
CHWs are well-positioned to help — they work in the community and often visit people in their homes, which makes them likely to be the first to notice when something changes.
Memory loss isn't just aging
Memory loss means you might not remember things from long ago, things that happened recently, or both. Aging can make it harder to learn and remember new things, but that doesn't mean significant memory loss — unless there's a disease causing it. CHWs visit people in their homes and notice things, which makes you well-positioned to catch memory problems early.
Signs of memory loss
- Difficulty paying attention and asking the same questions over and over
- Forgetting or mixing up words when speaking (saying "bed" instead of "table")
- Getting confused about time and place
- Taking longer to complete familiar tasks (like following a recipe)
- Putting things in wrong places (a wallet in a kitchen drawer)
- Getting lost while walking or driving in familiar areas
- Mood or behavior changes without apparent reason
What causes memory loss
Memory loss can be temporary or permanent.
Temporary causes
- Brain tumor or temporary infection
- Brain injury or concussion
- Medical conditions (thyroid, kidney, liver disorders)
- Medications (benzodiazepines, narcotics) or combinations
- Mental health disorders (depression, schizophrenia)
- Excessive alcohol or drug use
Why early intervention matters
Catching memory problems early opens up options. Here's what early intervention enables.
Benefits of Early Intervention
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A CHW notices that a client keeps asking the same question repeatedly, recently put their wallet in a kitchen drawer, and got lost driving a familiar route. Which is the most accurate interpretation?
What is dementia?
When a person has problems with memory, thinking, and social interaction that make everyday activities difficult, they have dementia. Dementia isn't a single disease — it's a group of symptoms with different causes. Alzheimer's disease is the most common cause of dementia that gets worse over time.
Cognitive changes
- Forgetting things (often noticed first by a spouse or someone else)
- Trouble talking or finding the right words
- Trouble seeing things or figuring out where you are (getting lost while driving)
- Trouble with thinking, solving problems, planning, organizing
- Trouble moving your body or doing things requiring coordination
- Confusion and not knowing what's going on around you
Psychological changes
- Acting differently than usual
- Feeling really sad and unmotivated
- Feeling really worried or nervous
- Doing things that aren't appropriate or socially acceptable
- Thinking other people are out to get them or don't like them
- Feeling really restless or upset
- Seeing or hearing things that aren't really there
How dementia progresses
As dementia advances, the picture changes.
Progression of Dementia
Early-Stage
- Hard time talking, remembering, and focusing
- Getting lost or not knowing where you are
- Trouble keeping things organized, clean, or paying bills
- Emotions change a lot
Late-Stage
- Acting differently than usual, including changes in hygiene
- Seeing or hearing things that aren't real
- Collecting things and not wanting to throw them away
- Walking around without purpose or getting lost
Alzheimer's Disease
The top cause of dementia. Scientists are still learning, but changes in three genes may play a role. The APOE (apolipoprotein E4) gene increases risk. People with Alzheimer's have plaques and tangles in their brains.
Making the home dementia-friendly
One concrete thing CHWs can do to support a patient with dementia and their caregiver(s) is to make the home as comfortable and safe as possible.
Environmental Support for Patients with Dementia
Normal aging vs. Alzheimer's vs. depression
When people age, they may experience normal memory changes. Some look similar to what's seen in Alzheimer's or depression.
Telling Memory Conditions Apart
Normal Age-Related Changes
- Forget certain details of an experience.
Depression vs. Alzheimer's
- Depression: Trouble paying attention; not remembering everything said in a conversation.
- Alzheimer's: Forget entire experiences — even short-term info like what they had for breakfast.
These distinctions matter — memory changes can be a sign of something other than aging.
Delirium — a different beast
Unlike dementia, delirium is temporary and affects memory and thinking. Three main features:
- Sudden onset
- Distraction or inability to pay attention
- Confusion or disorganized thinking
Delirium can look like dementia. Doctors need input from a caregiver or family member for accurate diagnosis. And someone can have both delirium AND dementia at the same time.
Delirium risk factors and contributors
Who is more likely to develop delirium
Match the type of dementia with its description.
🌟 Lesson Takeaways
Memory loss isn't just aging — it has many causes, some temporary, some permanent. Aging itself usually doesn't significantly affect memory unless a disease like dementia is causing it. Dementia is a family of diseases with different mechanisms (Alzheimer's, vascular, frontotemporal, Lewy body, often mixed). As a CHW visiting patients at home, you're often the first to notice changes — and early intervention opens up real options for treatment, planning, and dignity. Knowing the signs is the work.
At the end of this module, you'll join a live discussion with your cohort and an instructor. We'll see you there.