Why do you colapse immediatly after your heart has stopped beating because of a heart attack and not a few minutes later after your body has run out of oxygen?
In: 55
You need blood pressure for blood to move through your organs in capillaries.
As soon as your heart stop beating, your arterial blood pressure drops to the same level as vein blood pressure and all the blood in your arteries and veins become useless to you. You don’t have access to its oxygen nor the oxygen in your lungs.
The oxygen in your capillaries is used fast by the brain and then you’re unconscious.
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