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TL;DR: A 2026 systematic review and meta-analysis posted to medRxiv found that gamma-frequency non-invasive brain stimulation was linked to symptom improvement in schizophrenia and depressive-symptom reduction in major depressive disorder, but the evidence was…
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TL;DR: A 2026 MIDUS mediation study in Brain, Behavior, & Immunity – Health found that social asymmetry was associated with greater chronic disease burden, while chronic disease burden mediated links between social asymmetry and episodic memory and executive f…
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TL;DR: A 2026 study in The Journal of Neuroscience found that adults with ADHD showed more sleep-like brain waves, known as slow waves, while awake, and those brief local sleep states helped explain lapses in attention and vigilance. Key Findings 32 ADHD adult…
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TL;DR: A 2026 study in Microbiome found that in older adults at metabolic risk, virgin olive oil was linked to better cognitive preservation and richer gut microbiota, while common refined olive oil pointed the other way. Key Findings Metabolic-risk cohort tra…
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TL;DR: A 2026 study in PNAS found that across convention-learning experiments, people explored uncertain options at first, then committed once enough evidence crossed a Tolerance Principle threshold rather than simply copying others or optimizing probabilities…
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TL;DR: A 2026 human microbiome and intervention study in Nature Communications found that coffee drinkers showed distinct gut microbiome composition and lower several microbial metabolites, while caffeinated and decaffeinated coffee shifted stress and mood mea…
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TL;DR: A 2026 study in Journal of Clinical Sleep Medicine found that in 65 continuous positive airway pressure (CPAP) adherent patients with obstructive sleep apnea, those who still showed objective daytime sleepiness on a psychomotor vigilance task scored wor…
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TL;DR: A 2026 study in Nature Communications found that self-administered finger-prick blood tests for phosphorylated tau 217 (p-tau217), an Alzheimer’s tau marker, and glial fibrillary acidic protein (GFAP), an astrocyte-injury marker, correlated with cogniti…
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TL;DR: A 2026 study in Nature Neuroscience from Baylor College of Medicine showed that boosting Sox9, a transcription factor that regulates aging astrocytes, improved astrocytes’ ability to clear amyloid plaques in Alzheimer’s mouse models and preserved cognit…
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Cannabis Did Not Just Blur Word Lists. It Hit Everyday Memory Too TL;DR: A randomized vaporized-THC trial found broad acute memory impairment, including false memories, prospective memory, source memory, and temporal order memory, with no meaningful dose split…
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