You Don't Know Jack

Life is hard. Let’s prepare for it.

You Don’t Know Jack is a performance psychology and resilience podcast hosted by Dr. Jack Groppel and Dr. Haley Perlus, two leading experts in human performance, mental toughness, and stress mastery.

With decades of experience coaching Olympic athletes, elite performers, executives, and high-achievers, Jack and Haley explore what it really takes to stay strong when pressure is high and the stakes are real. This show blends sport psychology, performance science, leadership coaching, and real-life stories into practical tools you can use immediately.

Each episode tackles the challenges people actually face:
Career transitions and burnout
Confidence under pressure
Emotional control and resilience
Motivation, focus, and consistency
Rebuilding after failure or setbacks
Performing when it matters most

Whether you’re an athlete, business leader, entrepreneur, or anyone trying to level up, this podcast gives you clear strategies to stay composed, committed, and capable, especially when life pushes back.

Expect honest conversations, expert coaching, and real-world performance tools designed to help you:
Handle pressure without breaking
Think clearly in difficult moments
Build mental toughness that lasts
Show up with confidence when it counts

Because success isn’t a finish line, it’s how you respond when things get hard.

This is the show that prepares you now, so you’re ready later.