Reducing the risks of dementia early on in childhood could be a crucial step towards decreasing the number of people living with dementia by nearly half, according to a new report by the Lancet Commission on dementia prevention, intervention, and care. The Commission identified 12 risk factors for dementia in 2020 and added two more – high cholesterol after the age of 40 and vision loss – in a recent report presented at the Alzheimer’s Association International Conference. By addressing these risk factors, experts believe governments can significantly reduce the global trend of dementia, leading to significant social and economic benefits.
The Lancet Commission’s new report highlights 14 risk factors that could potentially reduce the prevalence of dementia worldwide by nearly half. At the Alzheimer’s Association International Conference, recommendations were outlined for governments to take large-scale interventions to mitigate these risk factors. For instance, in England, it is estimated that around £4 billion could be saved through such interventions. The report, featured in The Lancet, focuses on the urgency of addressing these risks at a global level to combat the expected surge in dementia cases over the coming decades.
Some of the established risk factors for dementia include alcohol abuse, smoking, diabetes, obesity, high blood pressure, and physical inactivity, among others. The Lancet Commission’s latest report includes high cholesterol after the age of 40 and vision loss as new risk factors contributing to a significant percentage of dementia cases. With the aging global population, the number of people living with dementia is predicted to triple by 2050, reaching 153 million worldwide. Lower-income countries are particularly vulnerable to this surge, with the economic impact of dementia already estimated to be over $1 trillion annually.
Experts emphasize the importance of implementing large-scale interventions and health policies to address the identified risk factors for dementia. By influencing modifiable risk factors through government policies and public health initiatives, individuals can be supported in making necessary lifestyle changes to reduce their risk of dementia. Social isolation, hearing loss, and lower levels of education are among the risk factors that can be addressed through interventions such as providing socially integrated housing, activities, and volunteering opportunities for older adults.
The United States Surgeon General has highlighted the concerning “epidemic of loneliness” in the country, linking social isolation to several health issues, including substance abuse and obesity. Experts suggest that maintaining frequent social contact and reducing loneliness can play a crucial role in reducing the risk of dementia. Social interactions not only help build cognitive resilience against dementia pathology but also promote healthy behaviors like exercise and a balanced diet. Addressing risk factors such as alcohol consumption and obesity trends is essential in reducing the overall risk of developing dementia.
As the global population continues to age, the urgency to address the risk factors for dementia becomes increasingly paramount. Governments and public health officials need to prioritize interventions that promote healthy brain aging and reduce the prevalence of dementia worldwide. By implementing policies that target modifiable risk factors and encourage social interactions, individuals can take proactive steps towards reducing their risk of dementia. The Lancet Commission’s recommendations underscore the importance of early intervention and prevention strategies to combat the growing public health challenge posed by dementia.
