ProductivityPersonal Growth

Peak Performance

Brad Stulberg and Steve Magness

Stulberg and Magness synthesize research across athletics, business, and the arts into one principle: growth happens in the recovery after a stress, not during it, which means undertraining and overtraining fail for the same reason — an incomplete stress-rest cycle. Book 3's Chapter 7 draws on this for its filter clause distinguishing a genuine trough from a flatline of half-effort.