Staying in your comfort zone can actually make your second half pretty uncomfortable.  John Macdonald, friend of the show, regular Badass Contributor and Badass Community Guide, checks in to drop some bombs about everything from breaking out of your comfort zone to focusing on what you can control.  John's a damn smart cat and can teach us all a thing or three about optimizing our second half.  Check it out, you'll be damn glad you did.