The stereotypical depiction of fighting addiction makes it seem highly unpleasant: White knuckling, sweating it out, detoxing, going cold turkey–you get the picture. This applies to classical addiction, and also to the less dangerous (but nonetheless nettlesome) unhealthy habits and compulsions that we all wrestle with. My guest today takes a very different approach. She aims to harness the pleasure centers of the brain as a way to handle addictive habits—and, controversially, she doesn’t believe you need to go cold turkey on alcohol, which is the main intoxicant she has targeted. Her name is Annie Grace, and she is...