Aga Khan University Says Nearly 50% of Dementia Cases Link to Modifiable Risks, Not Age Alone
Updated
Updated · capitalfm.africa · Jul 22
Aga Khan University Says Nearly 50% of Dementia Cases Link to Modifiable Risks, Not Age Alone
1 articles · Updated · capitalfm.africa · Jul 22
Summary
Aga Khan University researchers say brain resilience helps explain why people of the same age can show sharply different cognitive function, making age alone a weak guide to brain health.
Nearly 50% of dementia cases may be tied to preventable or better-managed risks across life, the report says, citing factors such as education, hearing loss, cardiovascular health and social isolation.
Kenya data from the Brain Resilience study found some older adults living in poverty or after major adversity still showed unexpectedly stable brain structure, though researchers said that may reflect survivor bias and adaptation rather than benefits from stress.
Wearables tracking sleep, heart rate and daily movement are adding evidence that resilience appears in everyday body rhythms as well as memory and thinking.
The findings support a life-course approach to brain health, with investment in education, poverty reduction, cardiovascular care and social ties starting long before old age.
Can new wearable tech truly predict our future brain health and help us prevent dementia before it even starts?
If half of all dementia is preventable, why isn't brain health treated as a core part of national economic policy?
How does the brain build resilience from adversity when chronic stress is known to be so destructive to it?
Unlocking Dementia Prevention: New Evidence Shows 45% of Cases Are Preventable with Global, Personalized Strategies
Overview
Recent breakthroughs in dementia prevention show that individuals can significantly reduce their risk by addressing key factors throughout their lives. Global research, including studies in low- and middle-income countries, confirms that prevention strategies are widely applicable. The 2024 Lancet Commission has expanded the list of modifiable risk factors to 14, now including high LDL cholesterol and vision loss. By targeting these factors, nearly half of all dementia cases could potentially be prevented or delayed. This evolving understanding highlights the power of personal action and the importance of adapting prevention efforts to diverse populations worldwide.