When you expose your entire body to ice-cold water, a stress reaction is triggered. The body goes into survival mode by starting its heating system to keep the vital organs warm, which in turn triggers a euphoria. The sympathetic nervous system is also activated and increases the secretion of the blood-borne hormone noradrenaline, which, among other things, increases reaction time and concentration, which gives an immediate spike effect.
When you expose your entire body to ice-cold water, a stress reaction is triggered. The body goes into survival mode by starting its heating system to keep the vital organs warm, which in turn triggers a euphoria. The sympathetic nervous system is also activated and increases the secretion of the blood-borne hormone noradrenaline, which, among other things, increases reaction time and concentration, which gives an immediate spike effect.
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