Timothy R. Jennings, MD, has been in private practice as a Christian psychiatrist and certified master psychopharmacologist since 1997. Board certified in psychiatry by the American Board of Psychiatry and Neurology, Dr. Jennings has spent more than two decades researching the interface between biblical principles and modern brain science. He is a highly sought-after lecturer and international speaker and the author of The God-Shaped Brain and The God-Shaped Heart. He is in private practice in Chattanooga, Tennessee.