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Coma is a state of unconsciousness in which a person cannot be awakened; fails to respond ... Generally, a person who is unable to voluntarily open the eyes, does not have a sleep-wake cycle, is unresponsive ..... In more severe cases a coma may last for over five weeks, while some have lasted as long as several years.


How long does a coma last? It is difficult to predict how long someone will be in a coma. A coma rarely lasts more than 2 to 4 weeks. But a persistent vegetative ...


A coma can be difficult to understand, especially because it may look like the person is just sleeping. ... brain damage caused by a lack of oxygen for too long; an overdose (taking too ... Usually, a coma does not last more than a few weeks.


How long will the coma last? What can I do? This feeling of desperation is not one that any person wants to go through. No one wants to see their family member ...


(1) Can you communicate with people in coma, or other states of altered consciousness? ... (6) How long do coma and states of altered consciousness last?


How long can you lay in bed unconscious, not moving? Your body shuts down. ... Answer Wiki. 8 Answers. Alan Hall, I helped my brother come out of a 2 year coma. ... How long does a medically induced coma last? What is a coma like?


A coma can also be caused by severe alcohol poisoning or a brain infection ... how long the coma will last and whether they'll have any long-term problems.


Learn the physiological processes that trigger a coma and how often people awaken after months or even ... Most comas don't last more than two to 4 weeks.


Sep 11, 2016 ... WebMD explains various types of coma -- what causes them, how they are ... Trauma: Head injuries can cause the brain to swell and/or bleed.