Study Background and Disease Burden
Dementia represents a growing global health challenge, with particularly profound implications in low- and middle-income countries (LMICs) like Brazil. The increasing aging population in Brazil amplifies the burden of dementia, straining both healthcare resources and family caregivers. The 2024 update of The Lancet Commission on dementia prevention, intervention, and care expanded the list of modifiable risk factors to 14, reflecting new evidence linking lifestyle and health interventions to dementia risk reduction. Prior estimates of preventable dementia in LMICs were limited, and this new study by Suemoto et al. provides the first population attributable fraction (PAF) specifically for Brazil, shedding light on how targeted public health strategies could reduce dementia incidence significantly in this context.
