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FTL1 Iron Protein Reversal Improved Cognitive Aging in Old Mice

MHD featured image for FTL1, iron biology, and cognitive aging in mice.

A 2025 Nature Aging study found that hippocampal ferritin light chain 1 (FTL1) rose with age in mouse neurons, tracked poorer cognition, and became experimentally reversible in old mice. This is an animal-mechanism result, not a human anti-aging treatment.1 Research Highlights FTL1 rose in aged hippocampus: Western blot data showed higher hippocampal FTL1 in aged …

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Extra-Virgin Olive Oil Raised Brain Connectivity in a 9-Person Pilot

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A 9-person randomized crossover neuroimaging substudy found that high-polyphenol extra-virgin olive oil increased occipital resting-state functional connectivity compared with regular olive oil, beta = 0.20, 95% CI 0.03 to 0.37, p = 0.016.1 The result is a measurable brain-signal finding, but the clinical claim stays small: connectivity changed, cognition was not the endpoint. Research Highlights …

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Falling Dementia Rates Linked to Generational Memory Gains

Photoreal illustration representing generational gains in memory across older adults, with imagery of overlapping age trajectories and hippocampal motifs.

Dementia rates in the US, UK, Netherlands, Sweden, France, and several other high-income countries have been falling for decades, despite population aging. The standard explanation — improved cardiovascular care, more education, and less smoking in later-born cohorts — is real but incomplete. Research Highlights Dementia incidence has been falling about 13% per decade in Western …

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Virgin Olive Oil Linked to Cognitive Preservation and Gut Diversity

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A 2026 PREDIMED-Plus cohort analysis linked higher olive-oil intake with 2-year cognitive preservation in 656 older adults, with each 10 g/day increment associated with higher global cognition change compared with lower intake (beta 0.044 z-score; 95% CI 0.013 to 0.075; p = 0.006).1 The more specific signal favored virgin olive oil and gut-microbiome diversity, while …

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Pulse-Wave Harmonics Flag MCI During Cognitive Stress: 2.6-Point Gap

MHD featured image for pulse-wave harmonic coherence, cognitive stress, and mild cognitive impairment screening.

A 2026 community study of 101 older adults found that pulse-wave harmonics changed in a more organized way during a subtraction task in cognitively intact participants than in people with MoCA-defined mild cognitive impairment: amplitude-coherence scores averaged 9.00 vs. 6.40, a 2.60-point gap on a 0-10 scale. Research Highlights Cognitive stress exposed the signal: resting …

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