Negative body image is a lifelong issue for many women which social media only serves to fuel. Yet the habits and self-talk of mothers can also have a profound effect on young girls becoming overly critical of their bodies. Psychologists Janet Boseovski and Ashleigh Gallagher offer advice on what to do and what not to do in their new book Beyond Body Positive: A Mother's Evidence-Based Guide for Helping Girls Build a Healthy Body Image.