Daniel G. Amen's book "Change Your Brain, Change Your Life". The book explores the relationship between brain function and mental health, arguing that understanding the brain's different systems is essential for addressing various mental health issues. Amen uses SPECT imaging to assess brain activity and provides strategies for optimizing each brain system, covering topics such as anxiety, depression, and obsessive-compulsive disorder. The author suggests that targeted interventions, including medication, cognitive exercises, and lifestyle changes, can improve brain function and lead to better emotional regulation, cognitive performance, and overall well-being.