How long can you function once your heart stops?

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Often in movies and such when a person is struck in the heart they drop like a sack of potatoes. In real life if someone were to shoot you in the heart how long would you be able to function normally?

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When people faint due to high heat or stress, that’s from a sudden drop in blood pressure, resulting in a mild inability to stand up. This is called a vasovagal syncope in medical terminology, and it’s happens very quickly to people in perfectly good health, whose hearts are merely pumping *less* than they were a few seconds ago.

What’s really going to make the difference in terms of time is the amount of tissue damage to the heart muscle and connected arteries and veins, but even a small rupture of the arteries around the heart can result in hypovolemic shock within seconds. If the victim is shot with a rifle, however, the resulting tissue damage can be **massive**, because the speed of the projectile exceeds the limits of human tissue’s elasticity, and it creates a wound cavity of huge size. In that circumstances, they would likely lose consciousness in a fraction of a second.

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