Meet Sofie Hagen: comedian, fat activist and author of the new book, Happy Fat. She's here to tell us that many of our negative beliefs about fatness come from advertisers with an ulterior motive: to make money out of our desire to change ourselves. She speaks passionately about how she came to accept her own body (and how we can all do the same) and shares her heartfelt, bull***t-free advice on self-care.