Federal Reserve chairman Janet Yellen falls ill as she makes crucial interest rates speech
![Federal Reserve chairman Janet Yellen falls ill as she makes crucial interest rates speech](http://i.dailymail.co.uk/i/pix/2015/09/25/21/2CBC01EF00000578-0-image-m-3_1443211198082.jpg)
Yellen needed medical attention after struggling through the speech at the University of Massachusetts.
Yellen needed medical attention after struggling through the speech at the University of Massachusetts.