Simple body movement could help the brain 'clean itself,' researchers find

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. Fox News senior medical analyst Dr. Marc Siegel comments on a breakthrough study on Alzheimer’s disease performed on mice and what it means for humans on 'America Reports.' Exercise is widely known to benefit the brain, and researchers at Penn State recently uncovered a surprisingly mechanical reason: Each time the body moves, the brain gets a kind of "rinse." According to a study published in Nature Neuroscience, the secret to this internal wash cycle may lie in the abdominal muscles. In mice models, the researchers found that the brain is mechanically linked to the abdomen through a network of blood vessels that functions like a hydraulic system. FITNESS EXPERT REVEALS SIMPLE RULE TO GET IN SHAPE WITHOUT DREADING THE GYM: 'JUST MOVE' "Every time the mice contract their abdominal muscles — like when they walk — blood moves from the abdomen into the