Americans seem very afraid of cancer. Much of this fear is legitimate. Cancer is a significant cause of death. Unlike other causes, it often seems to come out of nowhere. It's the "silent killer". But evidence increasingly argues that cancer may be preventable, too. Unfortunately, this has inflamed as much as it has assuaged people's fears. Cancer prevention is the topic of this week's Healthcare Triage. This episode was adapted from a column Aaron wrote for The Upshot. Links to references and further reading can be found there: http://www.nytimes.com/2016/07/06/upshot/helpless-to-prevent-cancer-actually-a-lot-is-in-your-control.html?_r=0 John Green -- Executive Producer Stan Muller -- Director, Producer Aaron Carroll -- Writer Mark Olsen -- Graphics http://www.twitter.com/aaronecarroll http://www.twitter.com/crashcoursestan http://www.twitter.com/johngreen http://www.twitter.com/olsenvideo And the housekeeping: 1) You can support Healthcare Triage on Patreon: http://vid.io/xqXr Every little bit helps make the show better! 2) Check out our Facebook page: http://goo.gl/LnOq5z 3) We still have merchandise available at http://www.hctmerch.com