Transcript for 20-Year-Old Dies Never Having Aged

She was twenty years old but never looked her age all because of a rare condition that still has scientists baffled. Brooke Greenberg is twenty in this video. But she has an extremely rare condition called -- -- acts and until her death last week Brooke always looked and acted. Like -- happy toddler she stopped growing and developing at the age of five. She has strong identity though her parents say choose a bit of a rebellious teen of the Baltimore Ravens. Researchers are starting her DNA to find out more about the aging process or how to tap the fountain of youth something -- -- her entire life.

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