seth licensed psychologist

Seth J. Gillihan, PhD

Seth Gillihan is a licensed psychologist 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 BrainCognitive Behavioral Therapy Made Simple, and Mindful Cognitive Behavioral Therapy.

Seth serves as Therapy Advisor with the self-therapy app Bloom and is a medical reviewer for Everyday Health. 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.

Seth shares simple research-based practices for managing stress and anxiety in his free e-guide, “10 Ways to Manage Stress and Anxiety Every Day.” Sign up here to receive it by email along with Seth’s newsletter.

Seth’s philosophy of human thriving sits at the intersection of spirituality and evidence-based psychology. It is embodied in a mindfulness-centered form of CBT known as Think Act Be:

Think: Fostering thought patterns that serve you well
Act: Choosing behaviors that match your goals
Be: Opening to your present experience just as it is