The word coma comes from the greek meaning of “deep sleep,” but what exactly does this unconscious state do to your brain?
When a person is in a coma, they are alive but won’t respond to stimuli. The brain of a comatose person is active, but only at a base level.
Someone comatose can’t be woken up or perform any voluntary action, but it’s sort of like being asleep. A coma can be caused by increased pressure, bleeding, loss of oxygen, buildup of toxins or other injuries to the brain.
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