When your elders start forgetting things, it can be frightening. Many questions arise, such as, "Is this a natural part of aging? Is it a serious illness? Could they have amnesia or dementia? Should this be a cause for concern?" and more.
Amnesia and dementia are two well-known conditions that affect memory. People often confuse these mental health issues, yet they are very different. Knowing the difference between amnesia and dementia helps families better manage their loved ones' concerns and treatment. Let's learn more about these two conditions here.
Amnesia simply means that a person has no memory, whereas dementia is a disease that affects not only memory but also many other brain functions. Listen to two people describe where their cars are parked; a "normal" response would be:
Person with amnesia: They may not remember where they parked their car at all. However, by the time they are told where they actually parked their car, they locate the car, recognize it, and, with the help of this guide, drive safely home.
Person with dementia: They may not know where they parked their car and may even forget what they are looking for. They may not recognize the car they are trying to find, or become confused trying to find their way back home.
In amnesia, a person's problem-solving abilities remain as strong as before, but they just can't recall certain memories. These are the two main types of amnesia that people often experience:
Anterograde amnesia: A person with this condition is unable to form new memories after its onset. For example, they may clearly remember their childhood, yet completely forget what they did five minutes ago.
Retrograde amnesia: This is the opposite. They have reduced memory of events before the onset of amnesia, but they can remember things they have just learned or experienced.
Families notice that, in every way, apart from these gaps in memory, their loved one is the same person.
Dementia is a different disorder from amnesia. It's not just about memory, but also involves multiple brain functions. It alters the way a person thinks, reasons, speaks, and behaves. Dementia condition progresses, meaning its severity increases over time. What may begin as mild forgetfulness can, in the worst cases, lead to functional impairment, dependency, and even self-care impairment. The conditions most commonly associated with dementia are:
Reversible dementia, caused by vitamin deficiencies (like B12, D3, and folate), metabolic diseases or abnormalities, drug effects and interactions, pseudodementia, HIV dementia, etc.
Irreversible dementia, such as Alzheimer’s dementia, Vascular dementia, Lewy Body dementia, and Frontotemporal dementia.
Cause of Dementia and Amnesia
Amnesia is often triggered by a specific cause, such as:
Head injury or traumatic brain injury (e.g., head injuries from falls, car accidents, or sports injuries)
Stroke
Brain infection, such as meningitis, encephalitis, or brain abscess
Oxygen deficiency when the brain doesn't get the oxygen it needs.
Excessive stress, as the brain sometimes simply deletes memories to protect itself from very painful memories.
Vitamin deficiency (e.g., low intake of vitamins, especially B12)
Temporary amnesia is expected to resolve on its own over time. Other types of amnesia can be permanent, but they don't worsen over time.
What causes dementia?
Dementia is the result of changes in the brain that occur gradually and over time. Some of its causes are:
Blood vessel issues: Damaged or dysfunctional brain cells can accumulate chemicals that impair some thinking processes, while poor blood flow and oxygen contribute to other problems.
A person's risk of developing dementia increases with age, family history, and social habits.
Some diseases that mimic dementia (such as thyroid diseases, vitamin deficiencies, and drug reactions).
Warning signs of amnesia
Amnesia is a sudden, rapid-onset condition that usually occurs after an injury or illness. Symptoms include:
Immediately after a specific event, a person suddenly has difficulty forming new memories.
Confusion about recent events, but clear memories of distant past events.
Loss of memory around a specific time.
Good communication and problem-solving abilities remain.
Warning signs of dementia
On the other hand, this condition occurs gradually and is not just about memory loss. Early symptoms include:
Repeating the same questions over and over.
Difficulty returning to familiar places.
Mistakes in financial management or recipe preparation.
Not having the right words for thoughts or feelings.
Who you are, or your surroundings, may change with emotions or their expression.
Losing things like the keys to the freezer.
When should you worry?
Sometimes, people forget things. The question is, how often and to what extent does this interfere with everyday life? You should see a mental health professional, such as a psychiatrist or geriatric psychiatrist for the elderly, if you have memory problems:
Get worse over time
Interfere with daily activities
Forget important things
Impact safety
Personality changes
Take notes of specific events. Write down dates and activities associated with them. Providing this information to doctors will help them more easily diagnose the root of the problem.
Long-term outlook: Amnesia vs. Dementia
The Outlook on Amnesia
In some cases, amnesia can usually be cured, especially if it is properly managed using non-technical methods.
In some cases, the problem is still present but does not progress.
They remain the same as before.
Many of them can live alone and manage themselves with the right kind of support.
Dementia perspective
Dementia gradually worsens over time.
Although there is no cure, treatments are successful in relieving symptoms in some people.
As people's condition worsens, they require more care.
Preparing for the future becomes essential.
Getting a Diagnosis
The first step to getting help is getting an accurate diagnosis. Here is a list of some things for the patient to do:
Prepare for the doctor's visit
Keep a list of all medications
Write down a family health history
Please be clear about any memory problems or make a list of them.
Bring a family member or close friend along.
Tests and evaluation
The doctor will likely order some tests:
Physical examination and neurological tests
Memory and cognition assessment
Brain scans, such as an MRI or CT scan
Blood tests to rule out other conditions
Often, the doctor will refer the patient to a specialist, such as a neurologist, for a more detailed evaluation.
Treatment options for dementia and amnesia
Helping patients with amnesia
Amnesia treatment primarily focuses on addressing the underlying cause of the problem:
Treating underlying medical problems
Memory training and adapting to lifestyle changes
Memory aids (calendars and phones) to help restore memory
Emotional counseling sessions
Helping manage dementia
The main goals of dementia treatment are to slow the progression of dementia and improve distressing symptoms:
Medications that can help with memory and thinking
Therapy to manage behavioral problems
Regular physical exercise and solving puzzles can help with memory.
Regular health checkups.
Daily care.
Comparison of amnesia care
Being proficient in memory-supporting methods.
Maintaining a consistent daily routine.
Tolerating irregularities.
Many people can live alone
Comparison of dementia care
Adjusting a person's care as their disease progresses.
Safety is important.
Communication should be kept simple.
Planning for the future is crucial
Understanding the difference between amnesia and dementia helps families make informed decisions about care and treatment. While both conditions affect memory, their causes, symptoms, and diagnosis are different.
If you think someone close to you is experiencing memory problems, don't wait. You need to take action. Schedule an appointment with a psychiatrist or neurologist near me. The fact is, after a diagnosis, you'll be able to take control of your life. As a caregiver, don’t forget to take care of your mental well-being. You now have great access to connect with an expert through telepsychiatry. If you live in New Jersey, consult with a board-certified psychiatrist New Jersey from the comfort of your home.