Meet Brooke Greenberg, The 20-Year Old Toddler

Even at the age of twenty, Brooke Greenberg looks like a child, literally. Medical experts are baffled why the 20-year-old woman is trapped in a toddler’s body.

Mail Online reports Brooke has an estimated mental age of 9 months to 1 year, unable to speak, and still has her baby teeth on. Brooke rides a push chair wherever she is brought by her parents Howard and Melanie and her seventeen-year-old sister, who are from Maryland.

In an interview on “Katie,” which airs 11 a.m. weekdays on FOX8, her father said Brooke had grown like a normal child from ages one to four, but stopped between four and five.

“From age one to four, Brooke changed. She got a little bit bigger,” Howard told the show’s host Katie Couric on Thursday. “But age four, four to five, she stopped.”

Doctors had told the parents Brooke’s case is unique in the entire world and it’s obvious they’re worried of her situation.

“It hasn’t been easy...we don’t have anybody really to turn to, to tell us what to expect,” Melanie said. “Doctors have no way to even determine how long Brooke may live.”

Brooke could be suffering from a mutation of genes that blocks her ability to mature, tests conducted by scientists show.