Occasional forgetfulness can be a normal part of ageing, but repeated or worsening changes in memory, behaviour, movement or daily functioning should not automatically be dismissed as getting older. Medical evaluation can help determine whether the symptoms are related to dementia or another potentially treatable condition.
Families should pay attention when a person repeatedly asks the same questions, forgets familiar routes or people, struggles with routine tasks such as managing bills or medicines, or becomes increasingly dependent on others. A useful distinction is whether the change is becoming more frequent, progressively worsening or interfering with everyday independence.
Warning signs can also involve physical or behavioural changes. New difficulties with walking, repeated falls, speech problems, seizures, unexplained weakness or unusual headaches warrant medical attention. Significant personality changes, severe agitation, apathy, paranoia or unusual daytime sleepiness can also accompany neurological problems.
Memory changes may have causes other than dementia, including vitamin deficiencies, metabolic disorders, medication effects and untreated sleep problems. Conditions such as normal pressure hydrocephalus, chronic subdural haematoma and some brain tumours can also produce cognitive or behavioural symptoms and may require specific treatment.
Early evaluation can help identify the underlying cause, address reversible problems and support appropriate care. For conditions such as Alzheimer’s disease, an early diagnosis can help families understand the condition, explore available treatment and make plans for safety and long-term care.
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