02

Mar 2026

Time: The Overlooked Factor in Dementia Prevention

Published in News on March 02, 2026

Dementia is one of the most significant health challenges facing ageing populations around the world. As medical research continues to explore ways to prevent or delay cognitive decline, scientists are discovering that the causes and risk factors for dementia are more complex than previously understood. A new study from researchers at the University of New South Wales (UNSW) suggests that one often overlooked factor—time—may play a critical role in determining a person’s ability to protect their brain health.

The research, conducted by the Centre for Healthy Brain Ageing (CHeBA) and published in The Lancet Healthy Longevity, introduces the concept of “time poverty” as a hidden barrier to dementia prevention. According to the study, many of the lifestyle habits known to protect brain health require a resource that not everyone has enough of: time.

The Growing Challenge of Dementia

Dementia currently affects millions of people worldwide and is a leading cause of disability and death among older adults. In Australia alone, hundreds of thousands of people are living with dementia, and the number is expected to increase significantly in the coming decades as populations age.

Despite these worrying statistics, researchers emphasise that dementia is not inevitable. Studies suggest that as many as 45 per cent of dementia cases could potentially be prevented or delayed by addressing lifestyle and environmental risk factors.

These modifiable risk factors include physical inactivity, poor diet, social isolation, high blood pressure, smoking, and untreated health conditions. Many of these factors are closely tied to everyday habits and routines that support long-term brain health.

The Role of “Time Poverty”

While lifestyle changes can reduce dementia risk, the new UNSW study highlights an important problem: many people simply do not have the time needed to maintain these healthy behaviours. Researchers describe this situation as “time poverty,” which occurs when individuals lack sufficient discretionary time due to work, caregiving responsibilities, commuting, or other pressures.

Lead author Associate Professor Susanne Röhr explained that activities known to support brain health—such as regular exercise, adequate sleep, social interaction, and healthy meal preparation—require time to perform consistently. When people are overwhelmed with responsibilities, these activities often become difficult to maintain.

This imbalance can create inequalities in health outcomes. People who are already disadvantaged by socioeconomic circumstances may also face greater time constraints, making it harder for them to adopt lifestyle habits that protect against dementia.

Time as a Social Determinant of Health

The study argues that time should be considered a social determinant of health, similar to factors such as education, income, and access to healthcare. These determinants influence how individuals live, work, and maintain their wellbeing.

Researchers call this concept “temporal inequity,” which refers to the unequal distribution of time across different groups in society. For example, people juggling multiple jobs, caring for family members, or managing long commuting times may struggle to dedicate time to activities that support brain health.

Professor Perminder Sachdev, co-author of the study, emphasised that focusing solely on individual behaviour may not be enough to address dementia risk. Public health policies must also consider whether people realistically have the time needed to follow recommended health guidelines.

How Much Time Is Needed for Brain Health?

The research also explored how much time people may need each day to maintain healthy cognitive habits. According to the study, activities such as sleeping, preparing nutritious meals, engaging in physical activity, and maintaining social connections may require around ten hours per day combined.

For many individuals—especially those working long hours or providing care for family members—this level of time investment may be difficult to achieve. As a result, healthy routines that support brain function are often pushed aside by competing responsibilities.

The findings suggest that improving brain health may require broader societal changes, not just individual lifestyle adjustments.

The Importance of Policy and Workplace Reform

Researchers are calling for structural changes to help address time poverty. These could include policies that support work-life balance and allow people to prioritise their health.

Potential solutions may involve flexible working arrangements, improved public transportation to reduce commuting times, and workplace policies that encourage employees to disconnect from digital devices outside working hours. Affordable childcare and community support services may also help reduce the burden on families juggling multiple responsibilities.

By redistributing time more fairly across society, experts believe it may be possible to create conditions that allow more people to adopt healthy routines that protect brain function.

Supporting People Living With Dementia

While prevention remains a key goal, millions of people currently live with dementia and require ongoing care and support. The condition affects not only patients but also families and caregivers who play a crucial role in managing daily needs and providing emotional support.

As dementia progresses, patients may require medical treatment, monitoring, and sometimes hospital visits. During these periods, practical considerations such as transportation, comfort, and access to nearby services become increasingly important.

In such circumstances, hospital stays accommodation can be particularly helpful for families who need to remain close to healthcare facilities while supporting loved ones receiving treatment or assessment. Having convenient accommodation nearby can reduce stress and make it easier for families to focus on caregiving.

A New Perspective on Dementia Prevention

The discovery that time itself may influence dementia risk represents an important shift in how researchers approach brain health. Instead of focusing solely on individual choices, experts are beginning to recognise the broader social structures that shape people’s ability to maintain healthy lifestyles.

Addressing dementia risk may therefore require coordinated efforts from governments, healthcare providers, employers, and communities. Policies that support balanced lifestyles, accessible healthcare, and supportive environments could play a key role in protecting cognitive health in the years ahead.

Ultimately, the research highlights a simple but powerful idea: maintaining brain health requires time. Ensuring that individuals have the opportunity to prioritise their well-being may be one of the most important steps toward reducing dementia risk and improving quality of life for future generations.

Dementia is one of the most significant health challenges facing ageing populations around the world. As medical research continues to explore ways to prevent or delay cognitive decline, scientists are discovering that the causes and risk factors for dementia are more complex than previously understood. A new study from researchers at the University of New South Wales (UNSW) suggests that one often overlooked factor—time—may play a critical role in determining a person’s ability to protect their brain health.

The research, conducted by the Centre for Healthy Brain Ageing (CHeBA) and published in The Lancet Healthy Longevity, introduces the concept of “time poverty” as a hidden barrier to dementia prevention. According to the study, many of the lifestyle habits known to protect brain health require a resource that not everyone has enough of: time.

The Growing Challenge of Dementia

Dementia currently affects millions of people worldwide and is a leading cause of disability and death among older adults. In Australia alone, hundreds of thousands of people are living with dementia, and the number is expected to increase significantly in the coming decades as populations age.

Despite these worrying statistics, researchers emphasise that dementia is not inevitable. Studies suggest that as many as 45 per cent of dementia cases could potentially be prevented or delayed by addressing lifestyle and environmental risk factors.

These modifiable risk factors include physical inactivity, poor diet, social isolation, high blood pressure, smoking, and untreated health conditions. Many of these factors are closely tied to everyday habits and routines that support long-term brain health.

The Role of “Time Poverty”

While lifestyle changes can reduce dementia risk, the new UNSW study highlights an important problem: many people simply do not have the time needed to maintain these healthy behaviours. Researchers describe this situation as “time poverty,” which occurs when individuals lack sufficient discretionary time due to work, caregiving responsibilities, commuting, or other pressures.

Lead author Associate Professor Susanne Röhr explained that activities known to support brain health—such as regular exercise, adequate sleep, social interaction, and healthy meal preparation—require time to perform consistently. When people are overwhelmed with responsibilities, these activities often become difficult to maintain.

This imbalance can create inequalities in health outcomes. People who are already disadvantaged by socioeconomic circumstances may also face greater time constraints, making it harder for them to adopt lifestyle habits that protect against dementia.

Time as a Social Determinant of Health

The study argues that time should be considered a social determinant of health, similar to factors such as education, income, and access to healthcare. These determinants influence how individuals live, work, and maintain their wellbeing.

Researchers call this concept “temporal inequity,” which refers to the unequal distribution of time across different groups in society. For example, people juggling multiple jobs, caring for family members, or managing long commuting times may struggle to dedicate time to activities that support brain health.

Professor Perminder Sachdev, co-author of the study, emphasised that focusing solely on individual behaviour may not be enough to address dementia risk. Public health policies must also consider whether people realistically have the time needed to follow recommended health guidelines.

How Much Time Is Needed for Brain Health?

The research also explored how much time people may need each day to maintain healthy cognitive habits. According to the study, activities such as sleeping, preparing nutritious meals, engaging in physical activity, and maintaining social connections may require around ten hours per day combined.

For many individuals—especially those working long hours or providing care for family members—this level of time investment may be difficult to achieve. As a result, healthy routines that support brain function are often pushed aside by competing responsibilities.

The findings suggest that improving brain health may require broader societal changes, not just individual lifestyle adjustments.

The Importance of Policy and Workplace Reform

Researchers are calling for structural changes to help address time poverty. These could include policies that support work-life balance and allow people to prioritise their health.

Potential solutions may involve flexible working arrangements, improved public transportation to reduce commuting times, and workplace policies that encourage employees to disconnect from digital devices outside working hours. Affordable childcare and community support services may also help reduce the burden on families juggling multiple responsibilities.

By redistributing time more fairly across society, experts believe it may be possible to create conditions that allow more people to adopt healthy routines that protect brain function.

Supporting People Living With Dementia

While prevention remains a key goal, millions of people currently live with dementia and require ongoing care and support. The condition affects not only patients but also families and caregivers who play a crucial role in managing daily needs and providing emotional support.

As dementia progresses, patients may require medical treatment, monitoring, and sometimes hospital visits. During these periods, practical considerations such as transportation, comfort, and access to nearby services become increasingly important.

In such circumstances, hospital stays accommodation can be particularly helpful for families who need to remain close to healthcare facilities while supporting loved ones receiving treatment or assessment. Having convenient accommodation nearby can reduce stress and make it easier for families to focus on caregiving.

A New Perspective on Dementia Prevention

The discovery that time itself may influence dementia risk represents an important shift in how researchers approach brain health. Instead of focusing solely on individual choices, experts are beginning to recognise the broader social structures that shape people’s ability to maintain healthy lifestyles.

Addressing dementia risk may therefore require coordinated efforts from governments, healthcare providers, employers, and communities. Policies that support balanced lifestyles, accessible healthcare, and supportive environments could play a key role in protecting cognitive health in the years ahead.

Ultimately, the research highlights a simple but powerful idea: maintaining brain health requires time. Ensuring that individuals have the opportunity to prioritise their well-being may be one of the most important steps toward reducing dementia risk and improving quality of life for future generations.