Dr. John Paul Garrison, PsyD, MBA — widely known online as Dr. G — is a clinical and forensic psychologist, body language expert, author, and media contributor specializing in human behavior, deception detection, personality disorders, trauma, anxiety, and forensic psychology. Through his clinical work, forensic evaluations, media appearances, and widely viewed online content, Dr. G has helped millions of people better understand the psychology behind relationships, criminal behavior, stress, and nonverbal communication.

Dr. G earned his B.S. in Psychology from the University of Georgia before completing advanced graduate training in clinical psychology, including work in anxiety research and specialized training through the Emory School of Medicine at Grady Memorial Hospital. In addition to his doctorate in clinical psychology, he also holds an MBA and has extensive training in forensic assessment, personality disorders, and body language analysis. He has earned advanced certifications from the Paul Ekman Group in micro expressions, subtle facial expressions, and interactive law enforcement interviewing.

As a practicing psychologist and forensic expert, Dr. G conducts psychological and forensic evaluations involving trauma, personality disorders, custody issues, psychosexual assessments, substance abuse, and criminal matters. He has served as an expert witness in court and regularly consults with attorneys, organizations, and media outlets regarding behavioral analysis, deception, and forensic psychology. His work also includes developing innovative psychological assessment tools and digital mental health programs focused on trauma, resilience, and emotional well-being.

Dr. G is also the creator of the highly successful YouTube channel Dr. G Explains, where he analyzes body language, deception, criminal behavior, and high-profile true crime cases for a global audience. His videos combine forensic psychology, behavioral analysis, and real-world investigative insight to help viewers better understand the hidden dynamics behind human behavior and communication. His work has accumulated tens of millions of views and has been featured across major media outlets, including Court TV and Law & Crime Network.

At the core of Dr. G’s work ‍is a commitment to helping people better understand themselves and others. Whether working with therapy clients, consulting on forensic matters, training professionals, or educating audiences online, his approach focuses on practical insight, emotional resilience, and empowering individuals through a deeper understanding of psychology and human behavior.