An updated picture of Brooke Greenberg, now 20 years old. She has the mind of an infant and the body of a toddler. The cause of her lack of development is unknown, but her genes are being used to study Alzheimer's, heart disease, and cancer. She died in October 2013.
Brooke 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. Precious face!
Brooke Greenberg, left, is 16 years old in this photo. Her younger sister Carly (13) holds her. Brooke suffered from "Syndrome X", an unknown affliction that forced her to remain the size of a toddler her entire life. She died on October 24, 2013 at the age of 20.