A coma is mysterious–the person seems to be asleep, but is impossible to wake up. Wounded Arizona congresswoman Gabrielle Giffords was put into an induced coma in order to help her brain heal. Anne Strieber experienced this when an aneurysm burst in her brain. Neurologists are trying to figure out how to help these patients by studying how anesthesia works, because the brain under general anesthesia isn’t "asleep" as surgery patients are often told–it is placed into a state that is a reversible coma.
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A German woman who was in a coma for six years woke up after her mother took her to a Bryan Adams concert. Christiane Kittel, who is now 24, went into a coma on June 12, 1997. Doctors think it was caused by a combination of hot weather, hemophilia and the side-effects of her birth control pill. For the past six years, she was attached to life-support machines in an intensive care unit, until she heard the music at the concert, when she began to move in her wheelchair and eventually came back to life.
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