Peak Performance: Elevate Your Game, Avoid Burnout, and Thrive with the New Science of Success

by Brad Stulberg

The key to strengthening your biceps—and, as we’ll learn, any muscle, be it physical, cognitive, or emotional—is balancing the right amount of stress with the right amount of rest. Stress + rest = growth. This equation holds true regardless of what it is that you are trying to grow.