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Dementia Risk: 5 Surprising Factors Revealed
10 Dec, 2025
Summary
- Avoid unproven brain supplements; they lack efficacy and safety.
- Using glasses and hearing aids may significantly reduce dementia risk.
- City living's pollution and lack of green space may increase dementia risk.
Dementia affects approximately 7 million Americans, with projections indicating this figure could nearly double in the next quarter-century. Beyond well-known risk factors like diet and exercise, experts have identified five lesser-known contributors to dementia. These include neglecting to use necessary vision correction or hearing aids. Studies suggest that addressing these sensory impairments can reduce dementia risk by preventing social isolation and ensuring adequate brain stimulation.
Living in urban 'concrete jungles' may also elevate dementia risk due to pollution, noise, and limited access to green spaces, which impact cognitive health and social interaction. The shingles vaccine is also noted for a potential secondary benefit in reducing dementia risk by lowering inflammation. Furthermore, emerging research is exploring a potential link between Lyme disease and an increased risk of dementia.
Experts caution against relying on 'brain' supplements, stating that none have proven efficacy and some may even contain harmful contaminants. Instead, they advocate for fundamental lifestyle changes. Emphasizing moderation in all aspects of life is crucial for maintaining cognitive health and potentially preventing dementia.
