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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I haven’t actually seen someone talk about the anatomy of what’s happening so I figured I’d comment.
You have a part of your brain called your RAS system, which stands for reticular activating system. What this area of the brain does is it filters things which your consciousness is aware of. You probably weren’t conscious of your breathing until I mention it, because your RAS system deems being aware of it unimportant for the most part. Another example is not feeling your pants brushing and moving against your legs most of the day. The RAS system is also a big part of the process of waking up from sleep every night.
When I’m a coma, usually the RAS has some sort of damage that prevents it from sending information to your consciousness, thus preventing you from even realizing any stimulus is happening.
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