https://tube.blueben.net/videos/watch/0f0c1e7c-ea3f-4449-aa1f-acafa2a96324 You Have a Natural Lubricant Your body has an amazing built-in lubrication system that works every second without you ever noticing it. Surrounding each lung is a thin layer of pleural fluid, a slippery liquid that acts like a natural lubricant between the lungs and the chest wall. Every time you inhale or exhale, this fluid allows your lungs to glide smoothly with almost no friction, making each breath effortless and protecting the delicate tissues from damage. Without this remarkable system, every breath would create painful rubbing, making even the simple act of breathing much more difficult. Mon, 29 Jun 2026 05:24:04 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/0f0c1e7c-ea3f-4449-aa1f-acafa2a96324 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.