Research fails to show that green coffee extract works. It also fails to show travel bans are a good idea for Ebola. For those of you who want to read more, go here: http://theincidentaleconomist.com/wordpress/?p=58938 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/realjohngreen http://www.twitter.com/olsenvideo