Episode 175

Understanding Dementia: Risk Factors and Prevention with Dr Marita Long

In this episode of The Good GP, host Dr Krystyna de Lange is joined by Dr Marita Long, as they discuss dementia risk factors and prevention.

Dr Long says that dementia is a chronic disease, with its pathology starting 20 to 30 years before symptoms appear. Delving into the importance of intervention and maintaining brain health throughout life, Dr Long explains that dementia encompasses multiple symptoms with around 100 different causes, of which Alzheimer’s disease is the most common in Australia.


They then focus on non-modifiable risk factors, such as age and sex, noting that women are twice as likely as men to develop dementia. Exploring the global modifiable risk factors identified by the Lancet Commission, which include educational attainment, hearing impairment, traumatic brain injury, alcohol, obesity, smoking, hypertension, depression, social isolation, physical inactivity, diabetes, and air pollution. Data from the Lancet Commission implies that addressing these modifiable risk factors could prevent or delay 40% of dementia cases globally.


Dr Long suggests beneficial lifestyle practices such as maintaining a varied diet, regular exercise, limited alcohol consumption, no smoking, and consistent social engagement to help prevent dementia. The BrainTrack app, developed by Dementia Australia, is highlighted for its role in raising brain health awareness and measuring cognitive performance through interactive travel games aimed at promoting timely diagnosis of dementia.


They then addressed the increasing concerns about memory changes and dementia worries, suggesting opportunities for risk factor assessment during health assessments and at various life stages, including among individuals with intellectual disabilities and the Indigenous population. The COG DRISK online assessment tool, developed in Australia, is recommended for its comprehensive evaluation of modifiable dementia risk factors, providing a personalised risk score and tailored brain health recommendations for individuals over 40.


Resources mentioned in the episode:

  • Dementia in Practice podcast - https://dta.com.au/news/2021/dementia-in-practice-now-were-talking/
  • Dementia Training Australia website (free online courses and resources) - https://dta.com.au/
  • Dementia Australia - https://www.dementia.org.au/
  • Lancet article on dementia risk factors - https://www.thelancet.com/article/S0140-6736(20)30367-6/fulltext
  • CogDRisk Tool - https://cogdrisk-tool.neura.edu.au/
  • Preventing Dementia Mook - https://www.utas.edu.au/wicking/preventing-dementia
  • Dementia Braintrack app - https://www.dementia.org.au/braintrack
  • Cognitive training - https://www.cognifit.com/
  • Cognitive training - https://www.brainhq.com/


Some extra resources Dr Marita Long recommends:

  • https://www.mup.com.au/books/secrets-of-womens-healthy-ageing-paperback-softback
  • https://lisamosconi.com/the-menopause-brain


The Good GP Podcast is a proud member of the Talking HealthTech Podcast Network - the premier audio destination for cutting-edge insights and thought leadership in healthcare delivery, innovation, digital health, healthcare ICT, and commercialisation. Learn more at www.talkinghealthtech.com/podcast/network


If you have any questions or would like to contact The Good GP, send an email to thegoodgp@gmail.com

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About the Podcast

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The Good GP
The Good GP, the education podcast for busy GPs

About your hosts

Profile picture for Tim Koh

Tim Koh

Dr Tim Koh is a Perth-based GP with over 20 years of experience and a strong focus on GP education and evidence-based practice. He provides practical insights and advice on key topics in primary care.
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Krystyna de Lange

Dr Krystyna de Lange is a GP with nine years of experience, specialising in Aboriginal and Torres Strait Islander health, women’s health, and chronic disease management. She delivers practical insights and fosters engaging discussions on essential health topics.
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Sean Stevens

Dr Sean Stevens is a GP with 27 years of experience, recognised for his expertise in medical education and innovation. He has contributed to over 60 episodes, sharing valuable insights to promote quality care in general practice.