LONDON, UNITED KINGDOM - JUNE 4: Detail of the YouTube logo outside the YouTube Space studios in London, taken on June 4, 2019. (Photo by Olly Curtis/Future via Getty Images) Two billion. That’s how ...

Many health videos on YouTube, even those made by doctors, may not be giving viewers reliable medical information, a new study suggests. Researchers reviewed 309 popular YouTube videos about cancer ...

In 2025, the journal of Health Communication published a study that was described as a theory-driven content analysis of YouTube videos that focused on promoting mental health among college students.

YouTube may become an outlet used by doctors when diagnosing children with autism. Researchers at Stanford University trained undergraduates on behaviors common among children diagnosed with autism.