World Alzheimer’s Day, observed on 21 September, is an opportunity to remind families that persistent memory loss is not always a normal part of ageing. Anyone can forget a name or appointment and remember it later. Concern grows when memory, language or judgement problems become frequent, worsen over time and interfere with work, household responsibilities or safety. Early assessment cannot guarantee a cure, but it can identify the cause, rule out treatable conditions and help a family plan support while the person can still participate fully in decisions.
The World Health Organization reports that 57 million people were living with dementia in 2021 and nearly 10 million new cases occur each year. Alzheimer’s disease is the most common cause and may account for 60–70% of dementia cases. Dementia itself is not one single disease. It is a broad term for symptoms affecting memory, thinking and the ability to complete everyday activities, and several diseases or injuries can produce it.
What is the difference between Alzheimer’s disease and dementia?
Dementia describes cognitive decline that goes beyond expected age-related changes and affects daily life. Alzheimer’s disease is a specific brain disease and the most common cause of dementia. Other forms include vascular dementia, dementia with Lewy bodies and frontotemporal dementia. Mixed causes can also occur. Memory loss by itself is therefore not enough to diagnose Alzheimer’s disease.
Symptoms vary between individuals. Some people first notice memory difficulties, while others develop problems with words, planning, visual judgement, motivation or behaviour. Thyroid disorders, vitamin deficiencies, depression, medication effects, sleep problems and untreated hearing loss can sometimes look similar. A proper assessment may include a medical history, physical examination, cognitive testing, blood tests and imaging when clinically appropriate.
Ten early signs worth discussing with a doctor
1. Repeatedly forgetting recent events
A person may ask the same question several times, forget a conversation that happened recently, or depend on family members more than before. The important issue is repetition and impact, not one isolated lapse after a stressful day.
2. Difficulty completing familiar tasks
Preparing a familiar recipe, using a household appliance or following the steps needed to pay a bill may become unexpectedly difficult. This is more than taking extra time; the person may lose the sequence or need growing assistance.
3. Confusion about time or place
The person may lose track of dates or seasons, forget how they arrived at a familiar location, or become lost while walking or driving. Wandering and getting lost create safety risks and deserve prompt attention.
4. Problems following a conversation
Someone may stop frequently while searching for common words, repeat phrases, lose the thread of a discussion or use an unusual description instead of an object’s name. They may withdraw from conversations because keeping up has become tiring.
5. Putting objects in unusual places
Keys may be left in a refrigerator or a phone in an unexpected location. The person may be unable to retrace their steps and, when the pattern repeats, may wrongly believe someone has taken their belongings.
6. Reduced judgement
A person may become more vulnerable to scams, spend money in an uncharacteristic way, neglect hygiene or make unsafe decisions. Families should respond to sudden changes while still respecting the person’s dignity and autonomy.
7. Difficulty planning or working with numbers
Managing a bank account, comparing prices, organizing medication or carrying out a multi-step plan may become hard. An occasional calculation error is normal; repeated loss of an established skill should be evaluated.
8. Changes in mood or personality
Anxiety, suspicion, sadness, irritability or apathy may increase. The WHO notes that mood and behaviour changes can sometimes appear before obvious memory problems. A change does not prove dementia, but it provides useful information for a clinician.
9. Withdrawal from work or social activities
Some people participate less because they feel embarrassed about memory or conversation difficulties. Withdrawal may also reflect depression, hearing loss or another condition, but it becomes especially relevant when it accompanies cognitive changes.
10. Visual and spatial difficulties
A person may misjudge distances, misunderstand what they see or struggle with stairs and driving. Vision problems have many possible causes, so eye care and medical assessment are important instead of assuming dementia.
Normal forgetfulness or a warning sign?
Normal forgetfulness might mean briefly failing to recall a name and remembering it later, misplacing an item and finding it by retracing steps, or occasionally missing an appointment without a broader decline. A warning pattern is persistent, progressive and disruptive. Families can write down specific examples, dates and the practical consequences. Concrete observations help far more than simply telling a doctor that someone “forgets a lot.”
When should a family arrange an assessment?
Book a medical appointment when changes continue for several weeks, are noticed by more than one person, or affect money, medication, driving, cooking or personal care. Sudden confusion developing over hours or days is different from the gradual pattern often associated with Alzheimer’s disease. If it occurs with weakness on one side, speech difficulty, severe headache, fever or a fall, seek urgent help because stroke, infection or another emergency may be responsible.
Bring a list of symptoms, medications, supplements and previous illnesses, along with a person who knows what has changed. Do not repeatedly test or embarrass the person in front of relatives. The purpose of assessment is to understand and support, not to prove that someone is wrong.
How families can offer practical support
Choose a calm time for conversation and use specific, respectful examples. Saying, “We noticed medication has become difficult to organize and we would like to check your health,” is more constructive than saying, “You never remember anything.” Allow time for the person to respond. Avoid arguments over minor details and acknowledge the fear or frustration behind a reaction.
A consistent daily routine, good lighting, a visible calendar, written appointments and fixed places for keys and phones can reduce confusion. Review home safety, including rugs, stairs, cooking appliances, medicines and emergency contacts. Discuss driving carefully if errors or getting lost have occurred. Planning finances, care preferences and trusted decision support early is easier than waiting until choices become urgent.
Support should not mean removing independence too soon. Encourage the person to keep doing activities they can manage safely and include them in decisions. Exercise, hobbies, family visits and familiar community activities can support wellbeing. Our guide to the Saudi healthcare system can help families understand general pathways to medical services.
Caregivers need care too
Supporting someone with dementia can be physically and emotionally demanding. Sharing responsibilities, asking relatives or professionals for help, and taking regular breaks are not selfish. Caregivers should notice their own warning signs, including poor sleep, isolation, persistent anger, exhaustion or hopelessness. The WHO’s iSupport programme provides practical education and skills for dementia caregivers.
Can dementia risk be reduced?
No lifestyle can guarantee prevention, and products promising to restore memory or cure Alzheimer’s disease quickly should be treated with caution. Evidence does suggest that people can reduce the risk of cognitive decline by staying physically active, not smoking, avoiding harmful alcohol use, eating a balanced diet, remaining socially and mentally engaged, maintaining a healthy weight, and managing blood pressure, cholesterol and blood sugar. Treating hearing loss and reducing head injuries are also relevant.
Readers can explore our guides to nutrition and brain health and diabetes and hypertension. Food, supplements or mental games should never be promoted as a cure. Sustainable habits and appropriate medical care matter more than a single “superfood.”
Frequently asked questions
Does every memory problem mean Alzheimer’s disease?
No. Stress, depression, poor sleep, medications, hearing loss, thyroid disease and some nutritional deficiencies can affect memory. Clinical assessment is needed to determine the likely cause.
Can Alzheimer’s disease affect people under 65?
Yes, although advancing age remains the strongest known risk factor. The WHO states that young-onset dementia, with symptoms beginning before 65, may account for up to 9% of dementia cases.
Is there a cure?
There is currently no cure for dementia. Some medicines and non-drug approaches can help manage symptoms, daily functioning and quality of life for selected patients. Treatment must be individualized by a qualified clinician.
The bottom line
The central message of World Alzheimer’s Day is that early observation, respectful conversation and timely assessment matter. Do not turn every lapse into a diagnosis, but do not ignore a repeated change affecting daily life. Record examples, seek medical advice, plan for safety and support, and preserve the person’s dignity and participation.
Medical disclaimer: This article is for general education and cannot diagnose Alzheimer’s disease or select treatment. Sudden confusion or acute neurological symptoms require urgent medical attention.
