https://tube.blueben.net/videos/watch/d23304e8-c4b9-4cb6-9ef5-509af8358da0 Your stomach holds acid strong enough to dissolve meat, yet it never digests itself. Here’s how a mucus shield, tightly sealed cells and a lining that rebuilds every few days keep it safe. Wed, 21 Oct 2026 02:27:58 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.blueben.net https://tube.blueben.net/client/assets/images/icons/icon-96x96.png https://tube.blueben.net/videos/watch/d23304e8-c4b9-4cb6-9ef5-509af8358da0 All rights reserved, unless otherwise specified in the terms specified at https://tube.blueben.net/about and potential licenses granted by each content's rightholder.