Coma and Persistent Vegetative State
![Coma and Persistent Vegetative State](https://www.brainline.org/sites/default/files/styles/teaser_square/public/migrated/00141_0.jpg?itok=kOSM9x23)
A coma is a profound or deep state of unconsciousness (consciousness being the awareness of the self and the environment). People in a state of coma are alive but unable to move or respond to their environment. Coma may occur as a complication of an underlying illness or as a result of an injury, like a brain injury.
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