Do you go unconscious and die instantly the second your heart stops? If so, what causes that to happen instead of taking a little while for your brain to actually “turn off” from the lack of oxygen?

Question

Like if you get shot in the head, your death is obviously instantaneous (in most cases) because your brain is literally gone. Does that mean that after getting shot directly in your heart, you would still be conscious for a little while until your brain stops due to the inability to get fresh blood/oxygen to it?

In: Biology

Answer 1

I had a major heart attack while running. I lost consciousness and fell like a ton of bricks. Skinned knees and small bite on my tongue. I was out for about 20 seconds when I came to (cardiologist said my heart stopped and was “stunned”. I came to with no assist which was witnessed by several medics. It was like a dream but it wasn’t like Fred Sanford yelling “I see the light Elizabeth.”