When Sacha Mardou turned forty-years-old, she was leading a life that looked perfect on the outside: happily married to the love of her life, enjoying motherhood and her six-year-old daughter, and her first book had just been published. But for reasons she couldn't explain, the anxiety that had always plagued her only seemed to be getting worse. The product of a stoic, working-class British family, Sacha had a deeply seeded distrust of mental health...