I am a clinical psychologist. I teach at Georgia State University in the School of Social Work. I earned a master's degree in Biology after receiving tenure at GSU. I published a book on psychoneuroimmunology in 2015. I have a blog at Littrellsneuroscienceofwellbeing.org In my 2015 book, I cover the story on the mechanisms of addiction and how it relates to dopamine. In 1992, I published 2 books on alcoholism. My article publications can be downloaded from Scholarworks at GSU.