The leap reflex. At the level when your face is submerged in chilled water and also you maintain your breath it causes your pulse to decrease and blood provide to be expanded to indispensable organs, for instance, the coronary heart and cerebrum. That is priceless to assist increment the measure of time you may maintain your breath, however on the different hand is effective in overseeing PSVT (paroxysmal very ventricular tachycardia) which is portrayed by incidental episodes of excessive pulse.
