The Yerkes-Dodson Law: Finding Your Optimal Performance Zone

Why both too little and too much pressure undermine performance — and how to find the productive middle

How does arousal affect performance, and what is the Yerkes-Dodson law?

The Yerkes-Dodson law describes an inverted-U relationship between arousal (stress, activation, anxiety) and performance: too little arousal produces low performance due to disengagement; too much produces performance breakdown. The optimal level of arousal is in the middle — and it varies by task, with complex or novel tasks requiring lower arousal than simple, well-practiced ones. The basic relationship is well-replicated, though the precise "optimal point" is harder to measure.

The Yerkes-Dodson relationship was first described by psychologists Robert Yerkes and John Dodson in 1908 in studies of mice completing tasks under varying levels of electric shock. It has since become one of the most-cited principles in applied performance psychology, sport psychology, and organizational behavior. Its central insight — that performance peaks at a moderate, task-dependent level of activation and declines at both extremes — has practical implications for how to prepare for high-stakes performance, manage pressure, and calibrate challenge. Below are the core applications, with honest evidence grading.