Maryland 20-Year-Old Dies Never Having Aged (+video)

Photo Credit: Times Online/GDA Photo Service/NewscomBrooke Greenberg, who baffled scientists because she never aged, has died at the age of 20, never having developed beyond the physical size of an infant or the mental capacity of a 2-year-old.

The daughter of Howard and Melanie Greenberg from Reisterstown, Md., Brooke is one of about a dozen children in the world who have what some call syndrome X — a kind of Benjamin Button disorder that prevents them from aging.

Her funeral was Sunday at a synagogue outside Baltimore, family friends confirmed.

“The family is doing as well as can be expected,” Chris Cole, a colleague of Brooke’s father, told ABCNews.com today. “They are going through their traditions this week — the shiva.”

Brooke has been pushed around in a stroller all her life. In 2009, when her family was interviewed on ABC’s “20/20,” Brook weighed 16 pounds and was 30 inches tall. She didn’t speak, but she laughed when she was happy, and clearly recognized her three sisters: Emily, now 26; Caitlin, now 23; and Carly, now 17.

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