Research on perceived stress suggests that it is not the stressful experience itself that harms the body, but rather the reaction to it that is most destructive. When we are able to rethink stress and recognize that anxiety can be a beneficial response, we reduce the negative consequences of stress. Understanding that "the heart pounding in your chest is preparing you for action" and that heavy breathing supplies the brain with oxygen for quick thinking helps realize that the stress response enhances performance and helps deal with the task. This awareness reduces the physiological impact of stress: blood vessels relax, and with them, the whole body, while maintaining sharp focus as a benefit of stress.