How does a painkiller "know" where it hurts? https://tube.blueben.net/videos/watch/6660e1dc-f338-4d2b-9d86-eecf94ad37eb You swallow a tablet and the pain fades. But the drug never looks for the injury. It floods your blood, passes the liver, and reaches healthy tissue just as much as the spot that hurts. So why does only the pain stop? Tue, 06 Oct 2026 11:31:15 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.blueben.net How does a painkiller "know" where it hurts? https://tube.blueben.net/client/assets/images/icons/icon-96x96.png https://tube.blueben.net/videos/watch/6660e1dc-f338-4d2b-9d86-eecf94ad37eb 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.