#cognitive_function
Brain Aging: What Habits and Sleep Research Show
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Bilingualism, meditation, and sleep problems have each been studied in relation to brain aging or dementia risk, and subjective age in relation to general health. Most findings are associations rather than proof. Read more…
Heart Disease, Frailty, and Memory Loss Often Overlap
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A major ACC statement says heart disease, frailty, and cognitive decline in older adults often share underlying aging processes, and recommends assessing them together while noting the evidence is limited. Read more…
Do Mental Skills Peak in Midlife? What a 2025 Study Found
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A 2025 study combined published age trends in thinking and personality and found overall functioning peaked at 55 to 60, depending on how traits were weighted. Read more…
Why Your Walking Speed Might Be a Brain-Health Signal
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Among adults aged 80 and older, the fastest walkers had about half the risk of developing cognitive impairment compared with others their age. Here is what that observational finding does and doesn’t mean. Read more…
Ultra-Processed Food and Dementia Risk: What a Study Found
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A US study of 5,370 older adults linked the highest ultra-processed food intake to higher dementia risk. What it shows and what it can’t. Read more…
How Your Microbiome Affects Brain Health
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The story you usually hear about the gut-brain axis is direct: gut bacteria signal the brain, influencing mood and cognition in real time. That is not wrong,… Read more…
