Neurology
Study ties cavities and gum disease to higher stroke risk
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People with both cavities and gum disease had an 86% higher risk of ischemic stroke than those with healthy mouths, according to research published October 22, 2025, in Neurology Open Access. The two-decade study of 5,986 adults linked poor oral health to higher rates of major cardiovascular events, while emphasizing the findings show association, not causation.
Study links menopause to brain structural changes
A new review of studies shows that menopause causes measurable changes in brain structure, including shrinkage in areas key to memory and thinking. These alterations may explain symptoms like brain fog, but evidence suggests some recovery after menopause. The findings will be presented at The Menopause Society's 2025 annual meeting in Orlando.
Study associates hearing aids with lower dementia risk
A large-scale study using UK Biobank data has found that adults with hearing loss who regularly use hearing aids face a significantly reduced risk of developing dementia. The research, published in The Lancet Healthy Longevity, highlights hearing loss treatment as a potential modifiable factor in dementia prevention. This comes amid growing evidence linking untreated hearing impairment to cognitive decline.
Alzheimer's Biomarker Tests Development
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Regulatory developments were noted for blood-based biomarker tests to detect Alzheimer's disease. These tests represent an emerging tool for early diagnosis. The update was part of a health innovation brief.
FDA Approves Drug for Autoimmune Neuropathies
The FDA approved a new drug for treating autoimmune neuropathies on September 9, 2025, accompanied by discoveries of new autoantibodies and effective complement inhibitors. This development ends 30 years of limited treatment progress in the field.