Breaking News
Dementia Risk: It’s More Than Genetics

Dementia Risk: It’s More Than Genetics
By Robert Heyward
A groundbreaking study from UNSW reveals that social factors play a crucial role in determining dementia risk, highlighting the need to look beyond genetics and lifestyle when addressing cognitive health.
According to Dementia Australia, over 421,000 Australians are currently living with dementia, a figure projected to more than double to 812,500 by 2054. As dementia is set to become the nation’s leading cause of death, the study underscores the importance of considering social determinants as part of comprehensive prevention strategies.
The Role of Social Factors in Dementia Risk
Published in The Journals of Gerontology: Series A, the UNSW study identifies key social determinants — including marital status, living arrangements, income, and education — as critical influences on dementia risk.
“We’ve long known that lifestyle factors like a balanced diet, regular exercise, and avoiding smoking reduce dementia risk. But our findings reveal that social factors are just as important,” said Associate Professor Katja Hanewald of UNSW Business School.
The Poly Social Risk Score: Measuring Social Risk
To better understand the impact of social factors, the research team developed a ‘poly social risk score’, which aggregates 19 social determinants of health across five domains:
- Economic stability
- Education
- Healthcare access
- Neighborhood environment
- Social context
“The score ranges from 0 to 10, with higher scores indicating greater social risk,” explained Shu Chen, the lead researcher and a UNSW Business School Scientia PhD graduate.
This innovative tool could help businesses and healthcare providers identify individuals or groups at higher risk of dementia, enabling tailored interventions that address specific social challenges.
Key Social Determinants of Dementia Risk
The study, which analysed long-term data from older adults, highlights the profound impact of social factors on cognitive health:
- Marital Status: Being married or in a partnership offers emotional and social support that can reduce stress and promote mental wellbeing. “This support helps lower dementia risk by reducing stress and fostering mental health,” said Scientia Professor Henry Brodaty, from UNSW’s Centre for Healthy Brain Ageing.
- Living Arrangements: Older adults living alone or experiencing social isolation often lack the interactions essential for cognitive health, increasing their risk of dementia.
- Income: Higher household income is linked to better access to healthcare, healthier living conditions, and lower levels of chronic stress, all of which reduce dementia risk.
- Education: Greater levels of education build cognitive reserve, enhancing the brain’s ability to resist damage and delay dementia symptoms.
Implications for Businesses and Society
The findings carry significant implications for businesses, especially those in healthcare, wellness, and employee wellbeing sectors.
“Reducing dementia risk benefits not just individuals but also businesses,” said Hanewald. “It leads to lower healthcare costs, reduced absenteeism, and higher workforce productivity.”
To address these social determinants, companies are encouraged to:
- Foster social interaction through team-building activities, social clubs, and community service projects.
- Integrate social support into wellness programs alongside physical health initiatives.
- Develop tailored services, like affordable healthcare packages or retirement plans, to enhance economic stability for aging populations.
“By improving social factors in workplaces, businesses can help aging populations while also enhancing employee wellbeing and economic outcomes,” Hanewald added.
For society as a whole, these interventions could alleviate pressure on healthcare systems, reduce the need for long-term care, and enhance the quality of life for older adults.
Social Connections and Daily Choices: A Brain’s Best Defence
While genetics and environment play a role, the study emphasises the power of daily habits and social connections in maintaining brain health.
“Our research uncovers a powerful insight: your social connections and daily habits could be your brain’s best defence against dementia,” said Professor Brodaty.
Simple steps, like staying socially active and nurturing meaningful relationships, can significantly lower dementia risk, even in challenging circumstances.
By focusing on both lifestyle and social determinants, individuals, businesses, and society can build a more supportive and proactive approach to cognitive health.
For more local news, click here.
Breaking News
Lismore Man’s $100,000 Keno Win

Breaking News
Seas The Day Returns: The World’s Biggest Women’s Surfing Event Set for Kingscliff Beach

Breaking News
Record Emergency Department Attendances in Northern NSW Local Health District Hospitals

Breaking News
BREAKING NEWS: The Northern Rivers Times – Edition 245 is Out Now!

Breaking News
Government Extends Support for NSW Communities Affected by Ex-Tropical Cyclone Alfred

-
Tweed Shire News2 years ago
A NEW TWEED HEADS
-
Motoring News2 years ago
Toyota Supra: Get Ready For A Fully Electric Version In 2025
-
COVID-19 Northern Rivers News4 years ago
Northern Rivers Local Health District COVID-19 update
-
COVID-19 Northern Rivers News4 years ago
Northern Rivers COVID-19 update
-
Northern Rivers Local News3 years ago
Fears proposed residential tower will ‘obliterate’ Tweed neighbourhood’s amenity and charm
-
Health News4 years ago
COVID-19 Vaccination Clinic now open at Lismore Square
-
COVID-19 Northern Rivers News4 years ago
Lismore Family Medical Practice employee close contact
-
NSW Breaking News4 years ago
Vale: Former NSW prison boss Ron Woodham