Not following rules and letting go might actually make you feel better. Just ask musicians who improvise and make up music on the fly. Dr. Sanjay Gupta talks with Dr. Charles Limb about his study on musical improvisation and its impact on the brain. Plus, “Saturday Night Live” jazz saxophonist Ron Blake shares life-changing lessons from music that we can apply to our everyday lives. And to top it off, Sanjay attempts some freestyle rap. Spoiler alert: he’s pretty good at it.