He also provides counseling to oncology patients at Central Georgia Cancer Care. For 25 years he was the Director of Psychological Services for a large metropolitan Medical Center and is currently serving as an Assistant Professor of Psychiatry and Behavioral Science for Mercer University School of Medicine in Macon, Georgia. Dr. Johnston is author of "Lessons for Living: Simple Solutions for Lifes Problems" (ISBN 0-9712165-0-9) from Dagali Press and creator of the popular Awakenings Web Site (www.lessonsforliving.com).