"I was eighteen years old when I swallowed the first antidepressant drug in my life, I was standing under the weak English, in front of a pharmacy outside the Lea Commercial Complex in London, the drug tablet was white and small, and I felt as I swallowed it as a warm chemical kiss." With this confession, the British British writer and journalist Johann Hari begins describing his journey with depression, and his relentless pursuit, which led him to reveal the real causes of depression and the root methods of treatment.