When your coronary heart stops beating, there is not any extra blood or oxygen being pumped by your physique. This creates a disruption of the easily operating ecosystem that hitherto existed inside — a system that concerned oxygen inhalation and circulation, carbon dioxide exhalation, and waste administration, per McGill College.
This hindrance finally leads to what’s often known as autolysis, extra generally often known as self-digestion (by way of BBC). Self-digestion is when the enzymes that have been positioned inside your physique’s cells begin digesting the cells themselves as a result of they’re now disadvantaged of oxygen, per The Dialog. Self-digestion is most rampant in components of your physique the place enzymes are most concentrated, just like the pancreas, liver, and abdomen (per McGill College). This means of autolysis provides an alternate gasoline supply for the intestine microbes, who feed on the merchandise of cells breaking down and transfer on outdoors of your intestine to different areas of your physique.
All of that is what known as putrefaction, and it impacts what occurs to your pores and skin simply after dying, too. The fuel launched as a byproduct of putrefaction is what ends in the stench of dying and in addition the bloated look and discoloration of the pores and skin.