
Seth Gillihan, PhD
Psychology
Licensed psychologist in private practice in Ardmore, Pennsylvania
Expertise
Clinical psychology, depression, anxiety, insomnia, obsessive-compulsive disorder, post-traumatic stress disorder, mindfulness, stress management, midlife concerns, and relationship issues
About
Seth Gillihan, PhD, is a licensed psychologist in private practice in Ardmore, Pennsylvania, who helps people find personal growth by making important changes in their thoughts and habits. His work includes books, podcasts, and one-on-one sessions. He is the the host of the Think Act Be podcast and author of multiple books on mindfulness and CBT, including Retrain Your Brain, Cognitive Behavioral Therapy Made Simple, and Mindful Cognitive Behavioral Therapy.
He completed a doctorate in psychology at the University of Pennsylvania where he continued as a full-time faculty member from 2008 to 2012. He has been in private practice since 2012.
Education
- Bachelor of Arts (B.A.) in Biology and French, Indiana University, Bloomington
- Master of Arts (M.A.) in Community Counseling, George Washington University, Washington, DC
- Doctor of Philosophy (Ph.D.) in Psychology, University of Pennsylvania
Certifications
- Licensed Psychologist, Pennsylvania
- PSYPACT (Telehealth to Most States)
Professional Organizations
Research
Publications
Dr. Gillihan's research has investigated the role of the body and mind in creating and managing emotional experiences.
Book & Media Recommendations

Finding Meaning in the Second Half of Life by James Hollis, PhD
Latest Work
Latest contributions from Seth Gillihan, PhD, in Brain Cancer, Depression, Emotional Health, Fibromyalgia, Medical Specialties, Psoriasis, Relationships, Self-Care, Sexual Wellness, Stress, Therapy, Weight Loss