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In a new study, a blood test that recently received federal clearance helped predict cognitive decline linked to Alzheimer's disease up to a decade before symptoms appeared.

Nutrients from omega-3 supplements do reach the brain, according to a new study, but they do not appear to improve memory or cognitive function in adults at increased risk for Alzheimer's disease.

New study finds link between writing speed and dementia risk.

Using advanced biological aging clocks, researchers measured aging in 17 organ systems and found too little or too much sleep impacts the brain, heart, lungs, and more.

A new study finds women can score well on standard cognitive exams even after brain changes begin—raising concerns that current screenings may delay diagnosis and care.

New research finds women with high levels of a novel biomarker in their blood are much more likely to develop memory and thinking problems and dementia later in life.

A new study finds caffeinated coffee and tea are significantly associated with lower dementia risk. The link wasn’t there with decaf.

A large, new study of more than one million women finds hormone therapy used during menopause does not raise or lower a woman’s risk for dementia.

In a new study, people with preclinical Alzheimer’s disease who took 5,000–7,500 steps a day experienced slower tau buildup and less cognitive decline over time.

A new study suggests chronic insomnia may be an early warning sign or contributor to cognitive decline.

A new study finds artificial sweeteners typically found in ultra-processed foods and drinks may be associated with a faster decline in overall thinking and memory skills – especially in people under 60 and those with diabetes.

A new study finds early intervention for hearing loss significantly reduces the risk of dementia.

Researchers say they’ve found a “formula and recipe to improve brain health” and cognition in people at high-risk for dementia.