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Black-and-white editorial cartoon of an elderly mouse sitting in an armchair, looking confused while holding a small maze puzzle. The mouse’s body is shown in cross-section: inside the gut, a large mischievous bacterium agitates surrounding cells and interferes with a thick nerve running toward the brain. The nerve appears disrupted by smoky interference, while the brain above shows chaotic, flickering neural activity, suggesting impaired communication between the gut and brain.
A Nature study links gut microbe Parabacteroides goldsteinii to memory decline in aging mice. It may disrupt gut-brain signals via the vagus nerve—and removing it improved cognition. A possible new target for brain health 🧠🦠 #Aging #Microbiome scientificinquirer.com/2026/03/13/d...