Arousal regulation is the ability to control your level of physiological and psychological activation — calming yourself when nerves spike, energizing yourself when you're flat, and recovering composure after a high-pressure moment. Arousal itself is neutral: it's the body's readiness for effort. The skill is landing it in the right place.
The relationship between arousal and performance follows an inverted-U: too little and you're sluggish, too much and you're tight and error-prone, with an optimal zone in between that differs by athlete and task. Arousal regulation is about moving toward that zone from either direction.
The most reliable tool is controlled breathing, especially with a longer exhale than inhale, which activates the body's calming response. Other tools include progressive muscle relaxation, reframing nerves as readiness, and energizing techniques when arousal is too low. Arousal regulation is one of the six domains of mental performance and underpins the management of performance anxiety and choking.