Daniel Amen is a psychiatrist and brain health expert known for his work in the field of neuropsychiatry. He is the founder of the Amen Clinics, which focus on brain imaging and treatment for various mental health issues. Amen has authored several books, including Change Your Brain, Change Your Life, which emphasizes the connection between brain function and mental well-being. He is also a prominent speaker and has appeared on various media platforms to discuss the importance of brain health. Amen advocates for using SPECT imaging to assess brain activity and promote personalized treatment plans for conditions like ADHD, depression, and anxiety.