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How much of your brain do you need to survive?

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Neuroscientists are still investigating this question: How much of your brain do you really need to survive? How well a person fares after experiencing brain damage can depend on a multitude of factors.

The brain is so flexible that some people can even live without half of it.

Dr. William Bingaman , a neurosurgeon at Cleveland Clinic , has performed over 500 hemispherectomies.

It's possible that more people have atypical brains than scientists realize.

Fedorenko: "There's a lot of knowledge we're lacking still about brains that look very different from a typical brain but can sustain human cognition just fine" One woman made it into her 20s before learning she had been born without a cerebellum.