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

My heart has stopped a few times but came back on its own. The experience is one of mild panic while fading to black over some seconds. Then my heart picks back up again beating very fast and I’m full of adrenaline and then actually feeling panic.

Also had my heart go to over 300 bpm and needed to be shocked back into rhythm.

Im not a drug abuser or anything, I just have a sinoatrial node that likes to do its own thing.