A coma is when a person is in such a deep state of unconsciousness that the individual is unable to be awakened. Severe illness and injuries such as concussions and brain trauma are the most frequent causes of comas. It derives from the Greek word koma, meaning 'deep sleep."
Any Arizona resident could suffer a brain injury at some point in their lives. Brain injuries can occur if a person is involved in a bike accident, car crash or all-terrain vehicle accident. Older individuals are prone to suffering brain injuries during a fall, while kids are at risk of injuring themselves at the playground.