Adrenaline can be experienced in high performance states, low performance states, and paralysis/freeze reaction.
From OptimalScience
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It was concluded that the hand-to-hand combat experiences of these soldiers (a) imposed stressors from a variety of sources, (b) required coping responses comprising a swift and accurate interpretation of environmental conditions and rapid deployment of problem focused strategies, and (c) evoked a constellation of powerful physiological and psychological reactions. Implications of this study for military personnel include the importance of “expecting the unexpected” in seemingly routine yet potentially hazardous combat operations, an emphasis on developing highly automated