A man in the United States says a video he posted on TikTok might have inadvertently saved his life - after viewers told him to have a suspicious-looking mole checked by a doctor.
Some doctors, meanwhile, are using the platform to give bite-sized advice - while dancing or lip-syncing. It's a bit unsettling for those used to seeing medical professionals in a more formal setting, but it is proving popular with the younger audience.
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