What prevents people in a coma from waking up?

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Probably a very stupid question but I can’t wrap my head around it. For instance if someone had head trauma, why can they not wake up after a few days or so? What is it that keeps them unconscious for such a duration of time with nothing to wake them?

Edit: i’m confused why this got so many upvotes but thanks😁

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Anonymous 0 Comments

Movies make coma out to be some kinda of hibernate computer mode for your brain that you keep trying to restart and it wont boot until one time it does. It’s much more like joint injury though. Takes a long time to heal, not all parts heal at the same speed, some parts never heal, return t function is variable depending on severity and parts injured. Consciousness may never return but other parts might go back to full function. The brain is a crazy thing.

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