We can dislodge our brain by overloading it with physiological stimuli. If you are on the brink of panic, holding your breath and dunking your head in a bucket of cold water will send a strong stimulus in the opposite direction. It activates the diving reflex, which will drop your heart rate as your brain overrides other signals to conserve oxygen. This is what I’d call a physiological disruptor—a short-term mood or body state shifter.
