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.

Find Your Purpose: How Meaning, Fulfillment, and Performance Actually Work
Find Your Purpose: How Meaning, Fulfillment, and Performance Actually Work
What’s the point of success if you don’t feel fulfilled? In this first episode of…

Pressure to Perform: How Early Influences Shape Us
Pressure to Perform: How Early Influences Shape Us
In Episode 2 of You Don’t Know Jack, Dr. Jack Groppel and Dr. Haley Perlus…

The Stress–Recovery Cycle: The Missing Link in High Performance
The Stress–Recovery Cycle: The Missing Link in High Performance
High performance cannot exist without both stress and recovery. In this episode of You Don’t…

Bad Advice That’s Hurting Your Performance | Mindset Myths Debunked
Bad Advice That’s Hurting Your Performance | Mindset Myths Debunked
Some of the most popular success advice may actually be hurting your performance. In this…

How High Performers Manage Fear Under Pressure
How High Performers Manage Fear Under Pressure
How High Performers Manage Fear Under Pressure In this episode of the You Don’t Know…

Why High Performers Don’t Fear Mistakes (They Recover Faster)
Why High Performers Don’t Fear Mistakes (They Recover Faster)
Mistakes are unavoidable in sport, business, and life, but how you respond to them is…

Visualization Isn’t Positive Thinking | Train Your Brain Like an Elite Performer
Visualization Isn’t Positive Thinking | Train Your Brain Like an Elite Performer
Visualization is one of the most talked about mental skills in performance… and one of…

What No One Tells You About Mentorship
What No One Tells You About Mentorship
What is a mentor… really? In this episode of You Don’t Know Jack, Dr. Haley…

The Coaching Room: Volume 1 | Real Challenges, Real Solutions
The Coaching Room: Volume 1 | Real Challenges, Real Solutions
This episode launches a recurring series on You Don't Know Jack. As a performance psychology…

The Words We Live By: Lessons from Lyrics, Movies, and Life
The Words We Live By: Lessons from Lyrics, Movies, and Life
What can a baseball movie, a country song, a Disney character, and Helen Keller teach…

Control the Controllables: Why It’s So Hard (And How to Train It)
Control the Controllables: Why It’s So Hard (And How to Train It)
People hear the phrase "control the controllables" all the time. Coaches say it. Leaders say…

Overthinking? Here’s Why You Get Stuck And How to Move Forward
Overthinking? Here’s Why You Get Stuck And How to Move Forward
Have you ever known exactly what you wanted to do... but couldn't seem to take…

The Thinking Traps That Sabotage Performance
The Thinking Traps That Sabotage Performance
Have you ever known you could make the shot... and still missed when it mattered…

The Coaching Room: Volume 2 | Real Challenges, Real Solutions
The Coaching Room: Volume 2 | Real Challenges, Real Solutions
We know recovery matters. So why is it so hard to actually do it? We…
“Perform with heart.
Win with mind.”
Haley Perlus is a Doctor of Performance Psychology, speaker, author and coach. She specializes in applying sport specific techniques to help athletes, business leaders, and high achievers optimize their mental game. To discuss consulting sessions, speaking appearances or media projects (including virtual sessions!), don’t hesitate to get in touch with Haley.
+2k
Join the Mental Toughness Network: Subscribe for FREE
"*" indicates required fields