US PresidentDonald Trumphas seemingly endorsed MedBeds, a fringe medical conspiracy theory, by posting (then deleting) an AI-generated video of himself promising to bring them to the American public.The only problem is that MedBeds don't exist.Here's everything you need to know about the bizarre conspiracy theory and what Trump has actually said about it.READ MORE:Daughters hit rock bottom after botched case against dad's murdererUS President Donald Trump appeared to promote the conspiracy in an AI video, which he posted then deleted hours later.(AP Photo/Evan Vucci,)What has Trump said about MedBeds?Over the weekend, Trump posted a video which appeared to show him promoting medbeds to his 10.8 million followers on Truth Social.But the video was AI-generated, as proven by the poor quality and Trump's uncanny, robotic voice.The clip was staged like a Fox News segment and began with an AI version of Lara Trump, the president's daughter-in-law, claiming he had announced "the nation's first medbed hospitals".It then cut to AI version of Trump claiming every American would soon receive a "MedBed card".READ MORE:Men who vanished on missing catamaran found off NSW coastThe AI-generated clip was made to look like a Fox News segment.(Truth Social/@realdonaldtrump)"With it, you'll have guaranteed access to our new hospitals led by the top doctors in the nation, equipped with the most advanced technology in the world," AI-Trump said.The AI version of the president claimed MedBed facilities were "safe, modern and designed to restore every citizen to full health and strength".He touted it as "the beginning of a new era in American healthcare".But the real Trump removed the video about 12 hours after posting it to Truth Social.It is unclear where the video originated, why the president posted it, or if it accurately reflects his belief in the MedBed conspiracy theory.Trump and the White House have not commented on the video or its removal.What is a MedBed?MedBeds - 'medical beds' or 'meditation beds', depending on who you talk to – are the subject of an alternative medicine/pseudoscience conspiracy theory.The conspiracy has become popular among far-right communities in the US, including the likes of QAnon, a far-right American political conspiracy theory and movement.READ MORE:Thousands hit with another Optus outageAI-generated images of 'MedBeds' from a video posted to Trump's Truth Social account.(Truth Social/@realdonaldtrump)According to believers, MedBeds are capable of curing any condition, regenerating missing body parts, and even reversing ageing.Many believe MedBeds already exist and are being hidden from the general public in secret military tunnels, where they are used by members of a deep state.This technology does not actually exist.But that has not stopped some believers from taking to platforms like Telegram and Truth Social asking about the benefits of MedBeds or how to get a MedBed themself.Where did the MedBed conspiracy come from?According toCNN, the MedBed conspiracy is rooted in longstanding beliefs about secret, advanced healing technologies the US government is supposedly hiding from the general public.These beliefs first emerged during the post-WWII UFO-spotting craze, when theories emerged that the government had found alien spacecraft and used it to reverse-engineer new healing technology.It was believed that these technologies were used by billionaires, elites and sometimes even public figures who had already died.READ MORE:Multiple people shot at Mormon church in USThe unsolved mysteries and conspiracies around the deaths of world leadersView GalleryThese theories continued to develop over time, until 2017 when they were adopted by QAnon.Some members believe Trump is already aware of MedBeds and plans to make them available to the public during his tenure as president.The AI video he posted over the weekend only solidified this belief among some conspiracy theorists.DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on theApple App StoreandGoogle Play.