1 rich Libsyn https://www.libsyn.com 300 600 🧠🦠 Microbes. Metabolites. Memory. &amp;nbsp; A fascinating new Nature study reveals a gut–brain pathway driving age-related cognitive decline. &amp;nbsp; Expansion of Parabacteroides goldsteinii in aging microbiomes increases medium-chain fatty acids, activating GPR84 signaling in peripheral myeloid cells. The resulting inflammation suppresses vagal sensory signaling, blunting hippocampal neuronal activation and impairing memory. &amp;nbsp; Even more intriguing: interventions restoring gut–brain communication improved cognition in mice. &amp;nbsp; This work highlights the gut microbiome as a therapeutic target for cognitive aging—suggesting that microbiome modulation, vagal stimulation, or GPR84 inhibition may one day help protect memory. Dr. RR Baliga's 'Podkast for the Kurious Doc' http://www.MasterMedFacts.com <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/40492240/height/300/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="300" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/content/199717240