For many older adults, life is full of routine. Eating breakfast, paying bills, shopping, driving, managing appointments and keeping track of medications are done almost automatically. For many, these routines go smoothly, but for some, small obstacles begin.
This small struggle is important. Perhaps it starts with casually forgetting to add items to a grocery list or misplacing a pair of glasses. A checkbook may become mismanaged, or a favorite recipe may become difficult to follow.
These moments can be dismissed as part of aging or blamed on a busy mind. Yet, when these new difficulties persist over time, they may be more than minor frustrations; These may be symptoms of something deeper.
Understanding functional changes
Daily functioning is a key measure of independence, reflecting not only memory, but the coordination, planning, and attention needed to navigate daily life. Changes here are often subtle, and they can go unnoticed by family members or health care providers.
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Clinicians have long recognized that loss of functional independence, such as difficulty performing daily activities, is a hallmark of dementia. It is actually part of the official diagnostic criteria for dementia.
What is less widely appreciated is that these functional changes can occur years before dementia is diagnosed, providing an early signal that the brain may be at risk. Even when memory is intact, persistent new struggles with daily tasks may indicate that cognitive decline is quietly beginning.
Continuous and temporary struggles
Recent studies following older adults without dementia have found that those who experience persistent problems with activities of daily living (such as preparing meals, shopping or driving) are at higher risk of developing Alzheimer’s disease in later years. In addition, these persistent deficits are associated with biological markers of the disease, which can be detected in the spinal fluid before memory loss becomes apparent. Conversely, temporary or occasional problems do not carry the same risk.
One of the key insights in this new research is the distinction between transient and persistent functional changes. While almost everyone misses keys or forgets names from time to time, chronic struggles that stretch or worsen over months and years may indicate early disturbances in the brain’s ability to coordinate complex tasks.
This article is part of our Gray Revolution series. Canada/LA Conversations invites readers to examine the far-reaching impact of the aging baby boomer generation on Canadian society – from housing and employment to culture, food, travel and health care. The series explores the changes that are already underway, as well as those still to come.
These disturbances can be one of the first indicators that cognitive decline is on the horizon, even before traditional cognitive tests detect it.
Families, especially those who live or spend time with an older adult on a daily basis, are often the first to notice subtle but consistent changes in functioning, such as moments when their loved one struggles to follow a familiar schedule, double-checking every step of a process that was second nature or avoiding tasks that were once routine. Early recognition of these patterns can help families make timely assessments, supports, and plans.
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Looking beyond cognitive screening tests
These findings also highlight the value of integrating performance assessments into routine health care. Traditionally, cognitive screening has focused on tests of memory, attention, or language. Recently, the assessment of changes in behavior or neuropsychiatric symptoms has been included in dementia guidelines, even in the screening of cognitively poor older people.
Measuring the ability to manage daily life may provide a window into brain health that is a more practical and potentially culturally applicable method for early detection than cognitive screening. Standard cognitive screening tests can be influenced by language, education or cultural background. For example, a person may have a low score simply because the test uses unfamiliar words, assumes certain schools or reflects cultural norms that differ from their own.
Conversely, observing changes in daily functioning over time focuses on real-life abilities and can reveal early signs of brain changes, providing a practical and widely applicable way to detect risk.
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Shifting focus in aging and brain health
The story of everyday struggles with early warning signs challenges common ideas about aging. What seems like normal forgetfulness may, in some cases, be a signal for closer attention. These subtle changes are not personal failings – they are symptoms, indicating a need for care, support and understanding.
It’s also important to keep it in balance: not every struggle is a sign of dementia, and many older adults maintain their independence without experiencing any decline in daily functioning. But for those whose problems persist and accumulate, the pattern makes sense.
Based on recent research, it is this persistence that, more than ever, is most strongly associated with subsequent cognitive decline and brain changes associated with Alzheimer’s disease.
By shifting the focus from forgetting events to changes in ongoing activities, families and health care providers can act more quickly. Support strategies, such as simplifying routines, using reminders or helping with complex tasks, can help maintain independence while serving as an early intervention. Early detection also allows for better planning, access to resources and timely medical evaluation.
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A window into brain health
Ultimately, the story of active change in age is one of caution and insight. Paying attention to what may seem like small, everyday problems can provide a glimpse into brain health years before memory loss becomes apparent. It is worth noting that the subtle ways in which life becomes difficult can contain vital information, and that early attention to persistent changes may make a meaningful difference in the course of aging and cognitive health.
If you’re interested in contributing to research on daily functioning and brain health, Canadian studies such as CAN-PROTECT and BAMBI show how subtle changes in daily life can signal early risk for Alzheimer’s.
Both studies are led by Dr. Zahinur Ismail, a clinical scientist at the University of Calgary and one of the authors of this story. BAMBI is based in Calgary, while CAN-PROTECT is an online study open to participants across Canada. By joining such studies, you can help advance research that can make a real difference.
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