https://tube.blueben.net/videos/watch/68083e5f-83c9-47ad-aa96-8d67b00a0a12 What Is Hitchhiker's Thumb? Why can some people bend their thumb far backward, and what do genetics, collagen, and joint anatomy have to do with it? Watch to discover the science behind hitchhiker's thumb. Thu, 09 Jul 2026 15:46:50 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/68083e5f-83c9-47ad-aa96-8d67b00a0a12 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.