The randomized controlled trial (RCT) is one of the most powerful tools of modern science. So how did we come up with this powerful tool for experimenting and finding thruth? It took a while. Learn about the fascinating history of RCTs. They've been a long time coming. Related HCT episodes: How Experiments are Designed: https://www.youtube.com/playlist?list=PLkfBg8ML-gIksZn5suMsE37qMqBh-RqBd Be sure to check out our podcast! https://www.youtube.com/playlist?list=PLkfBg8ML-gInFaYyYhKLBp2u7h5IojTw4 Other Healthcare Triage Links: 1. Support the channel on Patreon: http://vid.io/xqXr 2. Check out our Facebook page: http://goo.gl/LnOq5z 3. We still have merchandise available at http://www.hctmerch.com 4. Aaron's book "The Bad Food Bible: How and Why to Eat Sinfully" is available wherever books are sold, such as Amazon: http://amzn.to/2hGvhKw Credits: Aaron Carroll -- Writer Tiffany Doherty -- Writer and Script Editor John Green -- Executive Producer Stan Muller -- Director, Producer Mark Olsen – Art Director, Producer