Not All Stress Is Created Equal: How to Tell the Difference Between Challenge and Threat

IMG
Instructor
Colleen Wilson Mizuki
September 23, 2026 (Wednesday)
10:00 AM PDT | 01:00 PM EDT
Duration: 60 Minutes
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Overview

The body responds differently depending on whether a demand is appraised as a challenge (resources feel adequate) or a threat (resources feel inadequate) - and that appraisal, more than the demand itself, predicts performance, decision quality, and recovery.

This session unpacks the science of challenge versus threat appraisal and gives leaders practical tools to shift how their teams - and they themselves - experience high-pressure situations, without pretending the pressure isn't real.

Why you should Attend

Two people can face the identical deadline and have completely different physiological and performance outcomes - one rises to it while the other falls apart. The difference isn't grit. It's whether their nervous system appraised the situation as a challenge or a threat. Leaders who don't understand this distinction manage stress with a one-size-fits-all approach that helps some people and quietly sabotages others.

Areas Covered in the Session

  • The physiological difference between challenge-state and threat-state stress responses
  • What determines whether a demand gets appraised as challenge or threat 
  • Why the same workload can produce opposite outcomes in different people 
  • Practical levers leaders have to shift a team's appraisal toward challenge 
  • Warning signs that a team has slipped from challenge into chronic threat 
  • Applying this distinction to deadlines, change management, and performance conversations

Who Will Benefit

  • Anyone but this Topic is Particularly Helpful for Leaders/Managers

Speaker Profile

Colleen Wilson Mizuki is a trainer, facilitator, life & performance coach, and author specializing in stress physiology, nervous system regulation, and resilience for sustained performance and well-being in high-pressure environments. She has delivered training and coaching for 20+ years to high-stakes, high-demand, and safety-critical sectors (including military, fire fighter, government agency, and rail sector) to help them understand the biology behind stress and burnout and to sustain high performance and well-being even under pressure.

She is certified by the International Coach Federation, as well as in HeartMath®, Somatic Experiencing®, Cultural Intelligence®, and Social + Emotional Intelligence. She served as Director of Training for the Mindfulness-Based Mind Fitness Training (MMFT) program, developed for military and high-stress professionals. She holds an M.A. in Counseling Psychology and a B.A. in French, Chinese, and Economics, and has trained military personnel, diplomats, first responders, and Fortune 500 leaders over her career.

Colleen is the author of The Goldilocks Paradox (2026) and hosts the Still Curious podcast. Her sessions translate current nervous system science into practical tools leaders can use immediately - to read stress accurately, prevent burnout, and support teams in their search for sustained excellence.