One of the things in life we can’t change is our DNA. Yet that hasn’t kept thousands of people from having their genomes sequenced. University of British Columbia psychology professor Steven Heine joins us to talk about why some of us put entirely too much stock into what genetic testing reveals, which he writes about in “DNA is not Destiny: The Remarkable, Completely Misunderstood Relationship Between You and Your Genes” (W.W. Norton and Co.).