This is a preview of the Shortform book summary of Peak Performance by Brad Stulberg and Steve Magness.
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In virtually every domain—be it corporate jobs, athletic pursuits, or even college admissions—top performers are pushing the boundaries of human possibilities. But this relentless quest for excellence often leaves us suffering from chronic exhaustion and burnout, harming our performance and even our health. In Peak Performance, human performance experts Brad Stulberg and Steve Magness attempt to remedy this situation. They argue that sustainable elite performance is possible by implementing cycles of stress and rest.

Seasoned researchers and former elite performers themselves, Stulberg and Magness bring both empirical evidence and personal experience to their writing. Stulberg is a former consultant at the elite McKinsey consulting firm and the...

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Peak Performance Summary The Foundation of Growth

According to Stulberg and Magness, achieving maximal performance requires understanding how to grow in the first place. Consequently, they begin by outlining their formula for the type of growth that allows you to harness your potential. In this section, we’ll examine this formula, explaining why growth—whether intellectual or athletic—is a product of alternating between periods of stress and rest. We’ll also examine the authors’ concrete strategies for appropriately straining your body and mind and recovering afterward.

The Two Components of Growth

According to Stulberg and Magness, growth in any domain—mental, physical, or emotional—follows from a uniform formula. This formula holds that alternating between periods of stress and periods of rest yields consistent growth. To show as much, they examine the training of elite athletes and elite creatives to illustrate that it conforms to this formula.

It’s helpful to clarify what Stulberg and Magness mean by stress and rest in the first place. They explain that:

  • Stress is a type of stimulus that challenges the body or mind by pushing it near its limits. For example, to accustom their body to marathon pace, a...

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Peak Performance Summary Converting Growth Into Performance

While utilizing a consistent cycle of stress and rest sets the foundation for performance by fostering growth, Stulberg and Magness acknowledge that growth alone doesn’t ensure elite performance. For this reason, they offer three additional steps for converting growth into performance: developing a pre-performance routine, intentionally structuring your resources around your goals, and harnessing your purpose.

The Importance of Routine

According to Stulberg and Magness, an essential part of optimal performance in any domain is a consistent pre-performance routine. To craft your own routine, they recommend cultivating a positive mood, incorporating your environment into your routine, and personalizing your routine.

Make a Positive Mood Part of Your Routine

Stulberg and Magness contend that putting yourself in a positive mood is beneficial for both intellectual and athletic pursuits. Regarding intellectual work, they cite a study that assessed participants’ moods and then subjected the participants to creative problem-solving tests—participants whose moods were positive before the test consistently outperformed those whose moods were negative. Regarding...

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Shortform Exercise: Implement Stulberg and Magness’s Cycle for Peak Performance

Stulberg and Magness argue that a cycle alternating between stress and rest is essential to peak performance. In this exercise, reflect on your own approach to growth and practice implementing Stulberg and Magness’s cycle.


What is one area in which you’re currently attempting to grow (for example, work or a hobby)? What strategies are you using to cultivate this growth?

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