https://tube.blueben.net/videos/watch/fc3c1139-54b9-446e-b998-6a4bff849ba5 What part of your body is secretly called the “second heart”? It’s in your legs—and it plays a surprising role in keeping blood moving back to your heart. Thu, 03 Sep 2026 12:53:48 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/fc3c1139-54b9-446e-b998-6a4bff849ba5 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.